What's the output of those commands? $ dpkg -l | grep software-propoerties $ debsums software-properties-common (you might need to install debsums if the command is not available)
** Changed in: software-properties (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1860504 Title: software-properties-gtk fails to launch via "Additional Drivers" or via terminal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1860504/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs