'NoneType' object has no attribute 'group'

[jakubzeman]

youtube-dl --verbose 'https://www.youtube.com/watch?v=YQHsXMglC9A'
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'--verbose', u'https://www.youtube.com/watch?v=YQHsXMglC9A']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.11.21
[debug] Python version 2.7.10 - Darwin-15.0.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 2.8.2, ffprobe 2.8.2
[debug] Proxy map: {}
[youtube] YQHsXMglC9A: Downloading webpage
[youtube] YQHsXMglC9A: Downloading video info webpage
[youtube] YQHsXMglC9A: Extracting video information
[youtube] {22} signature length 49.43, html5 player en_US-vflFEzfy7
[youtube] YQHsXMglC9A: Downloading player https://s.ytimg.com/yts/jsbin/player-en_US-vflFEzfy7/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 828, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 755, in _extract_signature_function
cache_res = res(test_string)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 807, in
return lambda s: initial_function([s])
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 135, in interpret_expression
self._objects[variable] = self.extract_object(variable)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 220, in extract_object
fields = obj_m.group('fields')
AttributeError: 'NoneType' object has no attribute 'group'
(caused by AttributeError("'NoneType' object has no attribute 'group'",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 828, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 755, in _extract_signature_function
cache_res = res(test_string)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 807, in
return lambda s: initial_function([s])
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 135, in interpret_expression
self._objects[variable] = self.extract_object(variable)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 220, in extract_object
fields = obj_m.group('fields')
AttributeError: 'NoneType' object has no attribute 'group'
Traceback (most recent call last):
File "/opt/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 661, in extract_info
ie_result = ie.extract(url)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 290, in extract
return self._real_extract(url)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1367, in _real_extract
encrypted_sig, video_id, player_url, age_gate)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 838, in _decrypt_signature
'Signature extraction failed: ' + tb, cause=e)
ExtractorError: Signature extraction failed: Traceback (most recent call last):
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 828, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 755, in _extract_signature_function
cache_res = res(test_string)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 807, in
return lambda s: initial_function([s])
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 254, in resf
res, abort = self.interpret_statement(stmt, local_vars)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 55, in interpret_statement
v = self.interpret_expression(expr, local_vars, allow_recursion)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 135, in interpret_expression
self._objects[variable] = self.extract_object(variable)
File "/opt/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 220, in extract_object
fields = obj_m.group('fields')
AttributeError: 'NoneType' object has no attribute 'group'
(caused by AttributeError("'NoneType' object has no attribute 'group'",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type youtube-dl -U to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

[phihag]

You are using an outdated version of youtube-dl. See our FAQ if you need help updating.