After believing I had found a workaround, this bug has recurred. It may be related to https://bugs.launchpad.net/ubuntu/+source/packagekit/+bug/257639
I set up tracker to index several mounted drives and left it to run overnight. The next morning I found an index failed notice. When I restarted the system, the tracker notification error occurred. I decided to download the proposed updates for this and when I used update manager, I got the https://bugs.launchpad.net/bugs/257639 error. I have upgraded the following packages: libtracker-gtk0 (0.6.93-0ubuntu1) to 0.6.93-0ubuntu2 libtrackerclient0 (0.6.93-0ubuntu1) to 0.6.93-0ubuntu2 tracker (0.6.93-0ubuntu1) to 0.6.93-0ubuntu2 tracker-search-tool (0.6.93-0ubuntu1) to 0.6.93-0ubuntu2 tracker-utils (0.6.93-0ubuntu1) to 0.6.93-0ubuntu2 :~$ uname -a Linux KISE-003 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux :~$ lsb_release -rd Description: Ubuntu 9.04 Release: 9.04 -- Tracker uses notifications with actions when the index is corrupt https://bugs.launchpad.net/bugs/361205 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs