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

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 879, in _decrypt_signature
return func(s)

 "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 447, in <lambda>
return lambda s: initial_function([s])

 "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 113, in resf
res = self.interpret_statement(stmt, local_vars)

 "/usr/local/bin/youtube-dl/youtube_dl/jsinterp.py", line 43, in interpret_statement
'Cannot determine left side of statement in %r' % stmt)ExtractorError: Cannot determine left side of statement in u'xh(this.j,a)'; 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.
Traceback (most recent call last):

 "tools/mac/convert.py", line 561, in <module>
main()

 "tools/mac/convert.py", line 558, in main
parse_dwarf()

 "tools/mac/convert.py", line 398, in parse_dwarf
parser.feed_line(line)

 "tools/mac/convert.py", line 129, in feed_line
self.process_statement(**parsed)

 "tools/mac/convert.py", line 219, in process_statement
self.id_to_name[statement_id] = [self.base_type_name(data)]

 "tools/mac/convert.py", line 101, in base_type_name
return self.tp2vol[data['AT_name']]KeyError: 'sizetype'