ExtractorError: Could not find JS function u'ur'

[Dejniel]

youtube-dl --verbose "http://www.youtube.com/watch?v=ZvG47G-ImWc"
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'--verbose', u'http://www.youtube.com/watch?v=ZvG47G-ImWc']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.04.19
[debug] Python version 2.7.6 - Linux-3.16.0-38-generic-x86_64-with-LinuxMint-17.3-rosa
[debug] exe versions: avconv 11.3-6, avprobe 11.3-6
[debug] Proxy map: {}
[youtube] ZvG47G-ImWc: Downloading webpage
[youtube] ZvG47G-ImWc: Downloading video info webpage
[youtube] ZvG47G-ImWc: Extracting video information
[youtube] {22} signature length 40.40, html5 player en_US-vflLyLvKU
[youtube] ZvG47G-ImWc: Downloading player https://s.ytimg.com/yts/jsbin/player-en_US-vflLyLvKU/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 989, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 904, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 967, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
ExtractorError: Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
 (caused by ExtractorError(u"Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 989, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 904, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 967, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
ExtractorError: Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 671, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 341, in extract
    return self._real_extract(url)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1562, in _real_extract
    encrypted_sig, video_id, player_url, age_gate)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 999, in _decrypt_signature
    'Signature extraction failed: ' + tb, cause=e)
ExtractorError: Signature extraction failed: Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 989, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 904, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 967, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
ExtractorError: Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
 (caused by ExtractorError(u"Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

This is the last stable version on mint/ubuntu, but the last similar issue was repaired a year ago.

[dstftw]

You are using an outdated version of youtube-dl. Read our FAQ if you have troubles updating.

[7185]

Why do I have a similar error with the latest version then?

youtube-dl --verbose "http://www.youtube.com/watch?v=ZvG47G-ImWc"
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'--verbose', u'http://www.youtube.com/watch?v=ZvG47G-ImWc']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.06.23
[debug] Python version 2.7.11 - Linux-4.6.2_1-x86_64-with-glibc2.2.5
[debug] exe versions: ffmpeg 2.8.7, ffprobe 2.8.7
[debug] Proxy map: {}
[youtube] ZvG47G-ImWc: Downloading webpage
[youtube] ZvG47G-ImWc: Downloading video info webpage
[youtube] ZvG47G-ImWc: Extracting video information
[youtube] {22} signature length 40.40, html5 player en_US-vflLyLvKU
[youtube] ZvG47G-ImWc: Downloading player https://s.ytimg.com/yts/jsbin/player-en_US-vflLyLvKU/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 997, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 912, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 975, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python2.7/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
ExtractorError: Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
 (caused by ExtractorError(u"Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 997, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 912, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 975, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python2.7/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
ExtractorError: Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/youtube_dl/YoutubeDL.py", line 676, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 343, in extract
    return self._real_extract(url)
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 1570, in _real_extract
    encrypted_sig, video_id, player_url, age_gate)
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 1007, in _decrypt_signature
    'Signature extraction failed: ' + tb, cause=e)
ExtractorError: Signature extraction failed: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 997, in _decrypt_signature
    video_id, player_url, s
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 912, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 975, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/lib/python2.7/site-packages/youtube_dl/jsinterp.py", line 241, in extract_function
    raise ExtractorError('Could not find JS function %r' % funcname)
ExtractorError: Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
 (caused by ExtractorError(u"Could not find JS function u'ur'; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.",)); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

[dstftw]

It's not the latest version.

[7185]

My bad. You're right, sorry!