I have also experienced this bug. By following this advice from jonaz/Rusty, I haven't seen the error message since:
"Ran into the same problem. Following jonaz__ solution, with the exception that I killed the trackerd and tracker-indexer processes, deleted the contents of ~/.cache/tracker and ~/.local/share/tracker/data then logged out, and logged back in. Tracker indexer posted a notification that it was starting up." https://bugs.launchpad.net/ubuntu/+source/tracker/+bug/361560/comments/18 -- Corrupted tracker index causes persistent applet error popup https://bugs.launchpad.net/bugs/361560 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