Untitled

sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable

[sudo] password for gantry:

You are about to add the following PPA to your system:

 Cinnamon stable

 This PPA contains the stable releases of cinnamon for oneiric.

 

Cinnamon website : http://cinnamon.linuxmint.com/

 More info: https://launchpad.net/~gwendal-lebihan-dev/+archive/cinnamon-stable

Press [ENTER] to continue or ctrl-c to cancel adding it

 

Traceback (most recent call last):

  File "/usr/bin/add-apt-repository", line 99, in <module>

    sp = SoftwareProperties(options=options)

  File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 96, in __init__

    self.reload_sourceslist()

  File "/usr/lib/python2.7/dist-packages/softwareproperties/SoftwareProperties.py", line 580, in reload_sourceslist

    self.distro.get_sources(self.sourceslist)    

  File "/usr/lib/python2.7/dist-packages/aptsources/distro.py", line 91, in get_sources

    raise NoDistroTemplateException("Error: could not find a "

aptsources.distro.NoDistroTemplateException: Error: could not find a distribution template