[YouTube] ERROR: Signature extraction failed

[cespon]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.03.24
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

youtube-dl -v https://www.youtube.com/watch?v=NgpmxP7maVQ
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.youtube.com/watch?v=NgpmxP7maVQ']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2020.02.16
[debug] Python version 3.4.4 (CPython) - Windows-10-10.0.18362
[debug] exe versions: ffmpeg git-2020-01-15-0dc0837, ffprobe git-2020-01-15-0dc0837
[debug] Proxy map: {}
[youtube] NgpmxP7maVQ: Downloading webpage
[youtube] NgpmxP7maVQ: Downloading video info webpage
WARNING: unable to extract html5 player; 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.
[youtube] {18} signature length 112, html5 player None
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1385, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1262, in _extract_signature_function
youtube_dl.utils.ExtractorError: Cannot identify player 'https://www.youtube.com/s/player/4fbb4d5b/player_ias.vflset/en_US/base.js'; 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.
 (caused by ExtractorError("Cannot identify player 'https://www.youtube.com/s/player/4fbb4d5b/player_ias.vflset/en_US/base.js'; 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.",)); 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 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1385, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1262, in _extract_signature_function
youtube_dl.utils.ExtractorError: Cannot identify player 'https://www.youtube.com/s/player/4fbb4d5b/player_ias.vflset/en_US/base.js'; 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 "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1385, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1262, in _extract_signature_function
youtube_dl.utils.ExtractorError: Cannot identify player 'https://www.youtube.com/s/player/4fbb4d5b/player_ias.vflset/en_US/base.js'; 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.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\YoutubeDL.py", line 796, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 2048, in _real_extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1395, in _decrypt_signature
youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1385, in _decrypt_signature
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmpuz77jgzq\build\youtube_dl\extractor\youtube.py", line 1262, in _extract_signature_function
youtube_dl.utils.ExtractorError: Cannot identify player 'https://www.youtube.com/s/player/4fbb4d5b/player_ias.vflset/en_US/base.js'; 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.
 (caused by ExtractorError("Cannot identify player 'https://www.youtube.com/s/player/4fbb4d5b/player_ias.vflset/en_US/base.js'; 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.",)); 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.

Description

Some YouTube videos with same error:

• https://www.youtube.com/watch?v=QO3j9niG1Og
• https://www.youtube.com/watch?v=1p10tbhy-6E
• https://www.youtube.com/watch?v=opN9l1ARwNA

[cappert]

youtube-dl version 2020.02.16

update youtube-dl and try again.