Not able to download youtube playlist

[ram1123]

I typed on terminal:

youtube-dl -i --verbose --proxy "" 'http://www.youtube.com/playlist?list=PL7AD198111F85DB9C'

Then I got the following error:

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['-i', '--verbose', '--proxy', '', 'http://www.youtube.com/playlist?list=PL7AD198111F85DB9C']
[debug] Encodings: locale 'UTF-8', fs 'UTF-8', out 'UTF-8', pref: 'UTF-8'
[debug] youtube-dl version 2014.01.17.2
[debug] Python version 2.7.3 - Linux-3.2.0-23-generic-x86_64-with-LinuxMint-13-maya
[debug] Proxy map: {}
[youtube:playlist] PL7AD198111F85DB9C: Downloading page #1
ERROR: Unable to extract OpenGraph title; 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):
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 493, in extract_info
ie_result = ie.extract(url)
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 155, in extract
return self._real_extract(url)
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/youtube.py", line 1451, in _real_extract
playlist_title = self._og_search_title(page)
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 417, in _og_search_title
return self._og_search_property('title', html, *_kargs)
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 405, in _og_search_property
escaped = self._search_regex(self._og_regexes(prop), html, name, flags=re.DOTALL, *_kargs)
File "/usr/local/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 345, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract OpenGraph title; 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.

Also, when I typed "youtube-dl -U" to update it says:

It looks like you installed youtube-dl with a package manager, pip, setup.py or a tarball. Please use that to update.

Now I don't know how to update it.

Thanks for help.

[phihag]

Well, how did you install youtube-dl? If with pip, use pip -U youtube-dl. If you used a package manager, contact your distribution's (I believe it's Linux Mint) packager for updates.

In any case, you can always uninstall the packaged version with

sudo rm -r /usr/local/lib/python2.7/dist-packages/youtube_dl/ $(which youtube-dl)

and then follow our installation instructions:

sudo curl https://yt-dl.org/latest/youtube-dl -o /usr/local/bin/youtube-dl
sudo chmod a+x /usr/local/bin/youtube-dl
hash -r  # Clean bash cache in the current shell

[ram1123]

Thanks you very much. It worked.