ERROR: Signature extraction failed - From Last 1 day

[iitnischey]

ERROR: Signature extraction failed: Traceback (most recent call last): File "/usr/local/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 1199, in _decrypt_signature video_id, player_url, s File "/usr/local/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 1110, in _extract_signature_function res = self._parse_sig_js(code) File "/usr/local/lib/python2.7/site-packages/youtube_dl/extractor/youtube.py", line 1171, in _parse_sig_js jscode, 'Initial JS player signature function name', group='sig') File "/usr/local/lib/python2.7/site-packages/youtube_dl/extractor/common.py", line 880, in _search_regex raise RegexNotFoundError('Unable to extract %s' % _name) 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; 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. (caused by RegexNotFoundError(u'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; 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.',)); 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. Traceback (most recent call last):