I created a symlink as old_toby said and this solved the problem. Anyway, I change the bug report status to "confirmed".
Regards ** Changed in: software-properties (Ubuntu) Status: Unconfirmed => Confirmed -- software sources icon in control panel does nothing https://launchpad.net/bugs/84290 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs