Comment 62 for bug 346912

I upgraded from Intrepid and had this issue. I did what Bryan McLellan suggested in <a href="https://bugs.launchpad.net/ubuntu/+source/tracker/+bug/361560/comments/30">bug 361560</a>:

  sudo apt-get install tracker-utils
  tracker-processes -r # --hard-reset

and ran
  /usr/lib/tracker/trackerd &
  tracker-applet &

Everything seems to be fine now.