Error downloading from YT - JS player issue?

[zenshinji]

I tried downloading a video from YT. It failed. According to MacPorts I am running the latest version. Please see the verbose output below for more information. Let me know if I need to provide more information. TIA!

`youtube-dl --verbose https://www.youtube.com/watch?v=Fl8zWD23vh8&app=desktop
[1] 57738
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--verbose', 'https://www.youtube.com/watch?v=Fl8zWD23vh8']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.06.08
[debug] Python version 3.6.8 (CPython) - Darwin-17.7.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.1.3, ffprobe 4.1.3, rtmpdump 2.4
[debug] Proxy map: {}
[youtube] Fl8zWD23vh8: Downloading webpage
[youtube] Fl8zWD23vh8: Downloading video info webpage
[youtube] {18} signature length 100, html5 player vfl49f_g4
[youtube] Fl8zWD23vh8: Downloading player https://www.youtube.com/yts/jsbin/player_ias-vfl49f_g4/en_US/base.js
ERROR: Signature extraction failed: Traceback (most recent call last):
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1342, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1250, in _extract_signature_function
res = self._parse_sig_js(code)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1314, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1005, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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 RegexNotFoundError('Unable to extract \x1b[0;34mInitial JS player signature function name\x1b[0m; 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 "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1342, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1250, in _extract_signature_function
res = self._parse_sig_js(code)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1314, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1005, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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 "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1342, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1250, in _extract_signature_function
res = self._parse_sig_js(code)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1314, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1005, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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 "/opt/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 796, in extract_info
ie_result = ie.extract(url)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 530, in extract
ie_result = self._real_extract(url)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1986, in _real_extract
encrypted_sig, video_id, player_url, age_gate)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1352, in _decrypt_signature
'Signature extraction failed: ' + tb, cause=e)
youtube_dl.utils.ExtractorError: Signature extraction failed: Traceback (most recent call last):
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1342, in _decrypt_signature
video_id, player_url, s
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1250, in _extract_signature_function
res = self._parse_sig_js(code)
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 1314, in _parse_sig_js
jscode, 'Initial JS player signature function name', group='sig')
File "/opt/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1005, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; 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 RegexNotFoundError('Unable to extract \x1b[0;34mInitial JS player signature function name\x1b[0m; 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.`

[Hrxn]

[debug] youtube-dl version 2019.06.08

But that's not the latest version. Either raise an issue with your source (MacPorts?) or use an alternative way of program distribution.