KeyError: 'sig'

[mbnoimi]

Whenever I called youtube-dl I got the following error (I'm using Ubuntu 12.04 LTS x64):

user@myserver:~/TEST/mbuser$ youtube-dl -ct https://www.youtube.com/watch?v=qDH7zWYaScA&feature=em-uploademail
[1] 2375
user@myserver:~/TEST/mbuser$ [youtube] Setting language
[youtube] qDH7zWYaScA: Downloading video webpage
[youtube] qDH7zWYaScA: Downloading video info webpage
[youtube] qDH7zWYaScA: Extracting video information
Traceback (most recent call last):
  File "/usr/bin/youtube-dl", line 4645, in <module>
    main()
  File "/usr/bin/youtube-dl", line 4636, in main
    _real_main()
  File "/usr/bin/youtube-dl", line 4620, in _real_main
    retcode = fd.download(all_urls)
  File "/usr/bin/youtube-dl", line 869, in download
    ie.extract(url)
  File "/usr/bin/youtube-dl", line 1135, in extract
    return self._real_extract(url)
  File "/usr/bin/youtube-dl", line 1406, in _real_extract
    url_map = dict((ud['itag'][0], ud['url'][0] + '&signature=' + ud['sig'][0]) for ud in url_data)
  File "/usr/bin/youtube-dl", line 1406, in <genexpr>
    url_map = dict((ud['itag'][0], ud['url'][0] + '&signature=' + ud['sig'][0]) for ud in url_data)
KeyError: 'sig'
^C
[1]+  Exit 1                  youtube-dl -ct https://www.youtube.com/watch?v=qDH7zWYaScA
user@myserver:~/TEST/mbuser$ youtube-dl --version
2012.02.27
user@myserver:~/TEST/mbuser$

[jaimeMF]

Update to a more recent version using sudo youtube-dl -U or your package manager, you are running a really outdated version (two year old).
By the way, you have to enclose the url if it contains &: youtube-dl 'https://www.youtube.com/watch?v=qDH7zWYaScA&feature=em-uploademail', otherwise it will run on the background

[mbnoimi]

Thanks a lot it works perfectly.