shark@shark-Latitude-E6410:~$ youtube-dl --download-archive archive.txt "https://www.youtube.com/watch?v=tWaTW8b6598"
[youtube] tWaTW8b6598: Downloading webpage
[youtube] tWaTW8b6598: Downloading video info webpage
[youtube] tWaTW8b6598: Extracting video information
[youtube] tWaTW8b6598: Downloading js player en_US-vfla6wgHS
ERROR: Signature extraction failed: Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 989, in _decrypt_signature
    video_id, player_url, s
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 904, in _extract_signature_function
    res = self._parse_sig_js(code)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 967, in _parse_sig_js
    initial_function = jsi.extract_function(funcname)
  File "/usr/local/bin/youtube-dl/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'xm'; 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(u"Could not find JS function u'xm'; 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.
shark@shark-Latitude-E6410:~$ youtube-dl -U
Updating to version 2016.12.22 ...
ERROR: no write permissions on /usr/local/bin/youtube-dl