RegexNotFoundError: Unable to extract Initial JS player signature function name #2495

Closed
opened 2026-02-21 00:23:24 -05:00 by deekerman · 1 comment
Owner

Originally created by @TiVoMaker on GitHub (Jun 24, 2014).

Verbose output:

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-v', '-f', 'mp4', '--skip-download', 'http://buzzplaylist.com/the-worlds-best-pole-dancer-ukraine-got-talent/?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og.recommends%22%7D&action_ref_map=%5B%5D']
[debug] Encodings: locale UTF-8, fs utf-8, out None, pref UTF-8
[debug] youtube-dl version 2014.05.13
[debug] Python version 2.7.5 - Darwin-13.2.0-x86_64-i386-64bit
[debug] Proxy map: {}
[generic] ?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og: Requesting header
WARNING: Falling back on generic information extractor.
[generic] ?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og: Downloading webpage
[generic] ?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og: Extracting information
[download] Downloading playlist: The World’s Best Pole Dancer – Ukraine Got Talent | BUZZPLAYLIST
[generic] playlist The World’s Best Pole Dancer – Ukraine Got Talent | BUZZPLAYLIST: Collected 16 video ids (downloading 16 of them)
[download] Downloading video #1 of 16
[youtube] Setting language
[youtube] c9FS1bxaGTg: Downloading webpage
[youtube] c9FS1bxaGTg: Downloading video info webpage
[youtube] c9FS1bxaGTg: Extracting video information
[download] Downloading video #2 of 16
[youtube] c9FS1bxaGTg: Downloading webpage
[youtube] c9FS1bxaGTg: Downloading video info webpage
[youtube] c9FS1bxaGTg: Extracting video information
[download] Downloading video #3 of 16
[youtube] 4WvnjCkLbvY: Downloading webpage
[youtube] 4WvnjCkLbvY: Downloading video info webpage
[youtube] 4WvnjCkLbvY: Extracting video information
[download] Downloading video #4 of 16
[youtube] 4WvnjCkLbvY: Downloading webpage
[youtube] 4WvnjCkLbvY: Downloading video info webpage
[youtube] 4WvnjCkLbvY: Extracting video information
[download] Downloading video #5 of 16
[youtube] 9f347m914gY: Downloading webpage
[youtube] 9f347m914gY: Downloading video info webpage
[youtube] 9f347m914gY: Extracting video information
[download] Downloading video #6 of 16
[youtube] 9f347m914gY: Downloading webpage
[youtube] 9f347m914gY: Downloading video info webpage
[youtube] 9f347m914gY: Extracting video information
[download] Downloading video #7 of 16
[youtube] Smh0QXSmF-A: Downloading webpage
[youtube] Smh0QXSmF-A: Downloading video info webpage
[youtube] Smh0QXSmF-A: Extracting video information
[download] Downloading video #8 of 16
[youtube] Smh0QXSmF-A: Downloading webpage
[youtube] Smh0QXSmF-A: Downloading video info webpage
[youtube] Smh0QXSmF-A: Extracting video information
[download] Downloading video #9 of 16
[youtube] NEcZmT0fiNM: Downloading webpage
[youtube] NEcZmT0fiNM: Downloading video info webpage
[youtube] NEcZmT0fiNM: Extracting video information
[download] Downloading video #10 of 16
[youtube] NEcZmT0fiNM: Downloading webpage
[youtube] NEcZmT0fiNM: Downloading video info webpage
[youtube] NEcZmT0fiNM: Extracting video information
[download] Downloading video #11 of 16
[youtube] kc17H68IKMs: Downloading webpage
[youtube] kc17H68IKMs: Downloading video info webpage
[youtube] kc17H68IKMs: Extracting video information
[download] Downloading video #12 of 16
[youtube] kc17H68IKMs: Downloading webpage
[youtube] kc17H68IKMs: Downloading video info webpage
[youtube] kc17H68IKMs: Extracting video information
[download] Downloading video #13 of 16
[youtube] Ftl9Qk0v6Lg: Downloading webpage
[youtube] Ftl9Qk0v6Lg: Downloading video info webpage
[youtube] Ftl9Qk0v6Lg: Extracting video information
[youtube] Ftl9Qk0v6Lg: Encrypted signatures detected.
[youtube] encrypted signature length 90 (47.42), itag 22, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 43, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 18, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 5, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 36, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 17, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 136, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 247, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 135, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 244, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 134, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 243, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 133, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 242, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 160, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 140, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 88 (84.2.0), itag 171, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 136, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 247, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 135, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 244, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 134, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 243, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 133, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 242, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 160, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 140, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 171, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[download] Downloading video #14 of 16
[youtube] Ftl9Qk0v6Lg: Downloading webpage
[youtube] Ftl9Qk0v6Lg: Downloading video info webpage
[youtube] Ftl9Qk0v6Lg: Extracting video information
[youtube] Ftl9Qk0v6Lg: Encrypted signatures detected.
[youtube] encrypted signature length 90 (47.42), itag 22, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 43, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 18, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 5, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 36, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 17, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 136, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 247, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 135, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 244, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 134, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 243, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 133, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 242, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 160, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 140, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 84 (43.40), itag 171, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 136, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 247, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 135, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 244, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 134, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 243, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 133, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 242, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 160, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 140, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[youtube] encrypted signature length 90 (47.42), itag 171, html5 player en_US-vfl19qQQ_
[youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_
WARNING: Automatic signature extraction failed: Traceback (most recent call last):
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature
video_id, player_url, len(s)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function
res = self._parse_sig_js(code)
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js
u'Initial JS player signature function name')
File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.

WARNING: Warning: Falling back to static signature algorithm
[download] Downloading video #15 of 16
[youtube] v3fHqC2EuZc: Downloading webpage
[youtube] v3fHqC2EuZc: Downloading video info webpage
[youtube] v3fHqC2EuZc: Extracting video information
[download] Downloading video #16 of 16
[youtube] v3fHqC2EuZc: Downloading webpage
[youtube] v3fHqC2EuZc: Downloading video info webpage
[youtube] v3fHqC2EuZc: Extracting video information

Originally created by @TiVoMaker on GitHub (Jun 24, 2014). Verbose output: [debug] System config: [] [debug] User config: [] [debug] Command-line args: ['-v', '-f', 'mp4', '--skip-download', 'http://buzzplaylist.com/the-worlds-best-pole-dancer-ukraine-got-talent/?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og.recommends%22%7D&action_ref_map=%5B%5D'] [debug] Encodings: locale UTF-8, fs utf-8, out None, pref UTF-8 [debug] youtube-dl version 2014.05.13 [debug] Python version 2.7.5 - Darwin-13.2.0-x86_64-i386-64bit [debug] Proxy map: {} [generic] ?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og: Requesting header WARNING: Falling back on generic information extractor. [generic] ?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og: Downloading webpage [generic] ?fb_action_ids=10101499494767261&fb_action_types=og.recommends&fb_source=other_multiline&action_object_map=%7B%2210101499494767261%22%3A520432858078553%7D&action_type_map=%7B%2210101499494767261%22%3A%22og: Extracting information [download] Downloading playlist: The World’s Best Pole Dancer – Ukraine Got Talent | BUZZPLAYLIST [generic] playlist The World’s Best Pole Dancer – Ukraine Got Talent | BUZZPLAYLIST: Collected 16 video ids (downloading 16 of them) [download] Downloading video #1 of 16 [youtube] Setting language [youtube] c9FS1bxaGTg: Downloading webpage [youtube] c9FS1bxaGTg: Downloading video info webpage [youtube] c9FS1bxaGTg: Extracting video information [download] Downloading video #2 of 16 [youtube] c9FS1bxaGTg: Downloading webpage [youtube] c9FS1bxaGTg: Downloading video info webpage [youtube] c9FS1bxaGTg: Extracting video information [download] Downloading video #3 of 16 [youtube] 4WvnjCkLbvY: Downloading webpage [youtube] 4WvnjCkLbvY: Downloading video info webpage [youtube] 4WvnjCkLbvY: Extracting video information [download] Downloading video #4 of 16 [youtube] 4WvnjCkLbvY: Downloading webpage [youtube] 4WvnjCkLbvY: Downloading video info webpage [youtube] 4WvnjCkLbvY: Extracting video information [download] Downloading video #5 of 16 [youtube] 9f347m914gY: Downloading webpage [youtube] 9f347m914gY: Downloading video info webpage [youtube] 9f347m914gY: Extracting video information [download] Downloading video #6 of 16 [youtube] 9f347m914gY: Downloading webpage [youtube] 9f347m914gY: Downloading video info webpage [youtube] 9f347m914gY: Extracting video information [download] Downloading video #7 of 16 [youtube] Smh0QXSmF-A: Downloading webpage [youtube] Smh0QXSmF-A: Downloading video info webpage [youtube] Smh0QXSmF-A: Extracting video information [download] Downloading video #8 of 16 [youtube] Smh0QXSmF-A: Downloading webpage [youtube] Smh0QXSmF-A: Downloading video info webpage [youtube] Smh0QXSmF-A: Extracting video information [download] Downloading video #9 of 16 [youtube] NEcZmT0fiNM: Downloading webpage [youtube] NEcZmT0fiNM: Downloading video info webpage [youtube] NEcZmT0fiNM: Extracting video information [download] Downloading video #10 of 16 [youtube] NEcZmT0fiNM: Downloading webpage [youtube] NEcZmT0fiNM: Downloading video info webpage [youtube] NEcZmT0fiNM: Extracting video information [download] Downloading video #11 of 16 [youtube] kc17H68IKMs: Downloading webpage [youtube] kc17H68IKMs: Downloading video info webpage [youtube] kc17H68IKMs: Extracting video information [download] Downloading video #12 of 16 [youtube] kc17H68IKMs: Downloading webpage [youtube] kc17H68IKMs: Downloading video info webpage [youtube] kc17H68IKMs: Extracting video information [download] Downloading video #13 of 16 [youtube] Ftl9Qk0v6Lg: Downloading webpage [youtube] Ftl9Qk0v6Lg: Downloading video info webpage [youtube] Ftl9Qk0v6Lg: Extracting video information [youtube] Ftl9Qk0v6Lg: Encrypted signatures detected. [youtube] encrypted signature length 90 (47.42), itag 22, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 43, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 18, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 5, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 36, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 17, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 136, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 247, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 135, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 244, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 134, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 243, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 133, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 242, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 160, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 140, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 88 (84.2.0), itag 171, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 136, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 247, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 135, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 244, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 134, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 243, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 133, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 242, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 160, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 140, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 171, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [download] Downloading video #14 of 16 [youtube] Ftl9Qk0v6Lg: Downloading webpage [youtube] Ftl9Qk0v6Lg: Downloading video info webpage [youtube] Ftl9Qk0v6Lg: Extracting video information [youtube] Ftl9Qk0v6Lg: Encrypted signatures detected. [youtube] encrypted signature length 90 (47.42), itag 22, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 43, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 18, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 5, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 36, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 17, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 136, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 247, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 135, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 244, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 134, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 243, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 133, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 242, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 160, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 140, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 84 (43.40), itag 171, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 136, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 247, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 135, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 244, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 134, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 243, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 133, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 242, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 160, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 140, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [youtube] encrypted signature length 90 (47.42), itag 171, html5 player en_US-vfl19qQQ_ [youtube] Ftl9Qk0v6Lg: Downloading js player vfl19qQQ_ WARNING: Automatic signature extraction failed: Traceback (most recent call last): File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 872, in _decrypt_signature video_id, player_url, len(s) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 374, in _extract_signature_function res = self._parse_sig_js(code) File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 442, in _parse_sig_js u'Initial JS player signature function name') File "/Users/jmb/depots/p4/.virtualenv/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 377, in _search_regex raise RegexNotFoundError(u'Unable to extract %s' % _name) RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update. WARNING: Warning: Falling back to static signature algorithm [download] Downloading video #15 of 16 [youtube] v3fHqC2EuZc: Downloading webpage [youtube] v3fHqC2EuZc: Downloading video info webpage [youtube] v3fHqC2EuZc: Extracting video information [download] Downloading video #16 of 16 [youtube] v3fHqC2EuZc: Downloading webpage [youtube] v3fHqC2EuZc: Downloading video info webpage [youtube] v3fHqC2EuZc: Extracting video information
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@dstftw commented on GitHub (Jun 24, 2014):

This issue was fixed in 2014.06.19, run youtube-dl -U to upgrade.

@dstftw commented on GitHub (Jun 24, 2014): This issue was fixed in `2014.06.19`, run `youtube-dl -U` to upgrade.
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starred/youtube-dl-ytdl-org#2495
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