Traceback (most recent call last):


 "main.py", line 724, in <module>

mAP = sum_AP / n_classes
ZeroDivisionError: float division by zero
Traceback (most recent call last):

 "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 493, in extract_info
ie_result = ie.extract(url)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 158, in extract
return self._real_extract(url)

 "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/generic.py", line 380, in _real_extract
raise ExtractorError('Unsupported URL: %s' % url)ExtractorError: Unsupported URL: http://www.yourepeat.com/watch/?v=wCN-DnWwxQs; 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.