This bug has been fixed. Not sure exactly when but I can edit sources with no issues now
** Changed in: software-properties (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/817845 Title: software-properties-gtk crashed with ValueError in run(): <aptsources.sourceslist.SourceEntry object at 0x960b3cc> is not in list To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/817845/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs