I had installed Gnome Activity Journal, Zeitgeist and Tracker but borked the install by mixing the PPAs with the universe repos. I removed all the packages, did
apt-get remove --purge, then did a
locate to manually
rm everything else.
Then I reinstalled from the PPAs properly. Now I can't tag files anymore, either in Nautilus or GAJ. What packages are involved in tagging? What else might I be missing?