PLease attach your /etc/apt/sources.list and all files in /etc/apt/sources.list.d
Which one did you want to delete? Thanks. ** Changed in: software-properties (Ubuntu) Status: Unconfirmed => Needs Info -- [apport] software-properties-gtk crashed with ValueError in remove() https://launchpad.net/bugs/85759 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs