ogi@ogi-ubuntu:~$ sudo /usr/bin/software-properties Password: Traceback (most recent call last): File "/usr/bin/software-properties", line 31, in ? import gnome ImportError: No module named gnome ogi@ogi-ubuntu:~$
This isn't an xfce app and has nothing to do with xfce.
You should report this problem to the Ubuntu bug tracker[1] instead. [1] https://launchpad.net/distros/ubuntu
Moving invalid bugs to the /dev/null product.