I encountered the same issue recently with tracker 0.14.0-2. Fixed by running `dpkg-reconfigure locales` and setting a default locale, as mentioned here:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=612242#37 -- Casey M. Bessette -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org