Traceback (most recent call last):


 "/Users/mgsmith/src/scapy/scapy/fields.py", line 535, in h2i

inet_aton(x)
OSError: illegal IP address string passed to inet_aton

WARNING: Automatic signature extraction failed: Traceback (most recent call last):

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 962, in _decrypt_signature
return func(s)

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 530, in <lambda>
return lambda s: initial_function([s])

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 525, in resf
res = interpret_statement(stmt, local_vars)

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 460, in interpret_statement
v = interpret_expression(expr, local_vars, allow_recursion)

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 513, in interpret_expression
raise ExtractorError(u'Unsupported JS expression %r' % expr)ExtractorError: Unsupported JS expression u'$y(a,7)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type
youtube-dl -U
to update.