ExtractorError (skipping DASH manifest)

[turicas]

Hello,

I had the following error when trying to download https://www.youtube.com/watch?v=FqmA7EfZ0w8 -- the download was completed successfully and the video file is ok, but the error were shown anyway.

$ youtube-dl 'https://www.youtube.com/watch?v=FqmA7EfZ0w8'
[youtube] FqmA7EfZ0w8: Downloading webpage
[youtube] FqmA7EfZ0w8: Extracting video information
[youtube] FqmA7EfZ0w8: Downloading js player vflIlILAX
[youtube] FqmA7EfZ0w8: Downloading js player vflIlILAX
[youtube] FqmA7EfZ0w8: Downloading js player vflIlILAX
WARNING: [youtube] FqmA7EfZ0w8: Skipping DASH manifest: ExtractorError(u'Signature extraction failed: Traceback (most recent call last):\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 571, in _decrypt_signature\n    video_id, player_url, s\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 498, in _extract_signature_function\n    cache_res = res(test_string)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 550, in <lambda>\n    return lambda s: initial_function([s])\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 179, in resf\n    res = self.interpret_statement(stmt, local_vars)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 48, in interpret_statement\n    v = self.interpret_expression(expr, local_vars, allow_recursion)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 114, in interpret_expression\n    return obj[member](argvals)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 179, in resf\n    res = self.interpret_statement(stmt, local_vars)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 49, in interpret_statement\n    return assign(v)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 32, in assign\n    lvar[idx] = val\nIndexError: list assignment index out of range\n (caused by IndexError(\'list assignment index out of range\',)); 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.',)
[download] Destination: Vassouras Eco Resort-FqmA7EfZ0w8.mp4
[download] 100% of 165.63MiB in 02:42

[jaimeMF]

Could you post the full output of youtube-dl 'https://www.youtube.com/watch?v=FqmA7EfZ0w8' --verbose?

[turicas]

I've tried again with and without --verbose and the error didn't happen.
The verbose output is:

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['https://www.youtube.com/watch?v=FqmA7EfZ0w8', '--verbose']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2014.12.10.3
[debug] Python version 2.7.6 - Linux-3.13.0-24-generic-x86_64-with-LinuxMint-17-qiana
[debug] exe versions: avconv 9.16-6, avprobe 9.16-6
[debug] Proxy map: {}
[youtube] FqmA7EfZ0w8: Downloading webpage
[youtube] FqmA7EfZ0w8: Extracting video information
[youtube] {22} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {43} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {18} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {5} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {36} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {17} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {137} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {248} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {136} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {247} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {135} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {244} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {134} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {243} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {133} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {242} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {160} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {140} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] {171} signature length 46.34.3, html5 player en_US-vflIlILAX
[youtube] FqmA7EfZ0w8: Downloading DASH manifest
[debug] Invoking downloader on u'https://r5---sn-uxaxh5g-jo4e.googlevideo.com/videoplayback?upn=cgQnspGCjHI&mm=31&ipbits=0&ms=au&ratebypass=yes&source=youtube&mv=m&initcwndbps=676250&requiressl=yes&dur=513.787&itag=22&sparams=dur%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Cmime%2Cmm%2Cms%2Cmv%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&fexp=907259%2C924638%2C927622%2C932404%2C941004%2C943917%2C947209%2C948124%2C948529%2C952302%2C952605%2C952901%2C953912%2C955301%2C957103%2C957105%2C957201%2C959801%2C959802&sver=3&ip=187.15.7.70&mime=video%2Fmp4&key=yt5&expire=1418277687&id=o-AB8tTYOKt7HOvueHLbNo4fSdeZtxN2CfUxz59jdYhABf&mt=1418256058&signature=F8975982EB227B114A84D2975B9508F573A3AA78.1CB8E728707396770AD2B794CCF2D43FAA47AC97'
[download] Destination: Vassouras Eco Resort-FqmA7EfZ0w8.mp4

[kb100]

Can confirm this bug with url "https://www.youtube.com/watch?v=_VpiYxbmbDg". Happens about 50% of the time I run the command. Perhaps youtube is testing a new feature and only serving it on soime requests?

[user ~]$ youtube-dl --verbose -F "https://www.youtube.com/watch?v=_VpiYxbmbDg"
[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', '-F', 'https://www.youtube.com/watch?v=_VpiYxbmbDg']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.01.16
[debug] Python version 2.7.9 - Linux-3.16.0-4-amd64-x86_64-with-debian-8.0
[debug] exe versions: avconv 11.3-6, avprobe 11.3-6, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] _VpiYxbmbDg: Downloading webpage
[youtube] _VpiYxbmbDg: Extracting video information
[youtube] {43} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {18} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {5} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {36} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {17} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {135} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {244} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {134} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {243} signature length 40.40, html5 player en_US-vfllLRozy
[youtube] {133} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {242} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {160} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {278} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {140} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] {171} signature length 42.40, html5 player en_US-vfllLRozy
[youtube] _VpiYxbmbDg: Downloading js player en_US-vfllLRozy
WARNING: [youtube] _VpiYxbmbDg: Skipping DASH manifest: ExtractorError(u'Signature extraction failed: Traceback (most recent call last):\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 634, in _decrypt_signature\n    video_id, player_url, s\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 561, in _extract_signature_function\n    cache_res = res(test_string)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 613, in <lambda>\n    return lambda s: initial_function([s])\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 179, in resf\n    res = self.interpret_statement(stmt, local_vars)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 48, in interpret_statement\n    v = self.interpret_expression(expr, local_vars, allow_recursion)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 114, in interpret_expression\n    return obj[member](argvals)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 179, in resf\n    res = self.interpret_statement(stmt, local_vars)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 49, in interpret_statement\n    return assign(v)\n  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/jsinterp.py", line 32, in assign\n    lvar[idx] = val\nIndexError: list assignment index out of range\n (caused by IndexError(\'list assignment index out of range\',)); 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.',)
[info] Available formats for _VpiYxbmbDg:
format code extension resolution  note 
171         webm      audio only  DASH audio , audio@128k (worst)
140         m4a       audio only  DASH audio , aac  @128k
278         webm      144p        DASH video , webm container, VP9, video only
160         mp4       144p        DASH video , video only
242         webm      240p        DASH video , video only
133         mp4       240p        DASH video , video only
243         webm      360p        DASH video , video only
134         mp4       360p        DASH video , video only
244         webm      480p        DASH video , video only
135         mp4       480p        DASH video , video only
17          3gp       176x144     
36          3gp       320x240     
5           flv       400x240     
43          webm      640x360     
18          mp4       640x360     (best)

[yan12125]

It should be fixed in e1b9322. If the problem still exists, feel free to open a new issue.