WARNING: unable to extract html5 player;

[anuragregmi]

anurag@anurag  ~  youtube-dl -f22 "https://www.youtube.com/watch?v=ATIa2EbnoYk" --verbos
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-f22', 'https://www.youtube.com/watch?v=ATIa2EbnoYk', '--verbos']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.02.28
[debug] Python version 2.7.9 - Linux-3.19.0-47-generic-x86_64-with-Ubuntu-15.04-vivid
[debug] exe versions: avconv 11.2-6, avprobe 11.2-6, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] ATIa2EbnoYk: Downloading webpage
[youtube] ATIa2EbnoYk: Extracting video information
WARNING: unable to extract html5 player; please report this issue on http://yt-dl.org/bug
[youtube] {43} signature length 40.40, html5 player None
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 638, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 530, in _extract_signature_function
raise ExtractorError('Cannot identify player %r' % player_url)
ExtractorError: Cannot identify player u'https://s.ytimg.com/yts/jsbin/player-en_US-vflRVQlNU/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://s.ytimg.com/yts/jsbin/player-en_US-vflRVQlNU/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.
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 638, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 530, in _extract_signature_function
raise ExtractorError('Cannot identify player %r' % player_url)
ExtractorError: Cannot identify player u'https://s.ytimg.com/yts/jsbin/player-en_US-vflRVQlNU/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/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 643, in extract_info
ie_result = ie.extract(url)
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 275, in extract
return self._real_extract(url)
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1076, in _real_extract
encrypted_sig, video_id, player_url, age_gate)
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 648, 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 638, in _decrypt_signature
video_id, player_url, s
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 530, in _extract_signature_function
raise ExtractorError('Cannot identify player %r' % player_url)
ExtractorError: Cannot identify player u'https://s.ytimg.com/yts/jsbin/player-en_US-vflRVQlNU/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://s.ytimg.com/yts/jsbin/player-en_US-vflRVQlNU/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.

[dstftw]

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