It happened to me after trying to clean the computer with the computer-janitor (and failing) The system is telling me that there is an other manager running (like update manager or Synaptic) whereas there isn't. Although this bug with computer-janitor was reported (and fixed already) it has reappeared again so maybe these two bugs are linked.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/713467 Title: polkit-gnome-authentication-agent-1 crashed with SIGSEGV in g_cclosure_marshal_VOID__VOID() -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
