Bug#714593: same here

[Brent S. Elmer Ph.D.]

This bug hit me too.  This is a really bad bug.  This also makes me
quite disappointed at how fragile gnome-shell is.  How can a seemingly
minor application like bluetooth totally break gnome-shell?  The first
computer this happened on didn't even have a bluetooth device yet if I
try to remove gnome-bluetooth, it wants to remove a lot of other
applications I need.