Multiple errors, cannot download.

[ghost]

Below is exact copy from my terminal. One video failed. I tried another and it failed too.

scottbomb@main:$ youtube-dl https://www.youtube.com/watch?v=94DNV6oM8HU
[youtube] 94DNV6oM8HU: Downloading webpage
[youtube] 94DNV6oM8HU: Downloading video info webpage
[youtube] 94DNV6oM8HU: Extracting video information
[youtube] 94DNV6oM8HU: Downloading js player en_US-vflLyLvKU
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 997, in _decrypt_signature
video_id, player_url, s
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 912, in _extract_signature_function
res = self._parse_sig_js(code)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 975, 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'ur'; 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'ur'; 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.
scottbomb@main:$ youtube-dl https://www.youtube.com/watch?v=gq3Q8uFJMRs
[youtube] gq3Q8uFJMRs: Downloading webpage
[youtube] gq3Q8uFJMRs: Downloading video info webpage
[youtube] gq3Q8uFJMRs: Extracting video information
[youtube] gq3Q8uFJMRs: Downloading js player en_US-vflLyLvKU
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 997, in _decrypt_signature
video_id, player_url, s
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 912, in _extract_signature_function
res = self._parse_sig_js(code)
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 975, 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'ur'; 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'ur'; 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.
scottbomb@main:~$

[dstftw]

You are using an outdated version of youtube-dl.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

[ghost]

Thank you! I see that I need to run "youtube-dl -U" every so often as it's not included in the regular apt-get update/upgrade process.