Newest version, yet youtube-dl can't identify the player.

[JustFerry]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like that [x])
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Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.04.26. If it's not read this FAQ entry and update. Issues with outdated version will be rejected.

• [X ] I've verified and I assure that I'm running youtube-dl 2017.04.26

Before submitting an issue make sure you have:

• [ X] At least skimmed through README and most notably FAQ and BUGS sections
• [ X] Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• [X ] Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

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The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

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If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add -v flag to your command line you run youtube-dl with, copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

 (caused by ExtractorError(u"Cannot identify player u'https://www.youtube.com/yts/jsbin/player-vflppxuSE/en_US/base.js'; 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.

err
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1081, in _decrypt_signature
    video_id, player_url, s
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 969, in _extract_signature_function
    raise ExtractorError('Cannot identify player %r' % player_url)
ExtractorError: Cannot identify player u'https://www.youtube.com/yts/jsbin/player-vflppxuSE/en_US/base.js'; 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/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 760, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 429, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1642, in _real_extract
    encrypted_sig, video_id, player_url, age_gate)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1091, in _decrypt_signature
    'Signature extraction failed: ' + tb, cause=e)
ExtractorError: Signature extraction failed: Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1081, in _decrypt_signature
    video_id, player_url, s
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 969, in _extract_signature_function
    raise ExtractorError('Cannot identify player %r' % player_url)
ExtractorError: Cannot identify player u'https://www.youtube.com/yts/jsbin/player-vflppxuSE/en_US/base.js'; 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"Cannot identify player u'https://www.youtube.com/yts/jsbin/player-vflppxuSE/en_US/base.js'; 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.

[yan12125]

Duplicate of #12885, which will be fixed in the next version.