I uploaded a new version of synaptic (the backend of gnome-app-install) that gives a proper error message when it can't acquire the apt lock. I will close the bugreport now, please reopen if the new synaptic does not fix the problem for you.
Thanks, Michael ** Changed in: gnome-app-install (Ubuntu) Status: Confirmed => Fix Released -- No "apply" or "ok" finish the work when the apt lock is held https://launchpad.net/bugs/62754 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs