Make sure you configure and install properly! Remember also, you need a postinst in your package to compile glib schemas, or run that manually:
sudo glib-compile-schemas /usr/share/glib-2.0/schemas
Remember this is a testing release, and many items exist on the TODO. Feedback appreciated.
(Note, this follows a v1,v2,v3,v4 release scheme, which is not indicative of stability)