I think I might be having this bug too. Don't know how much info I can provide.
I'm running an amd64 Jessie destribution. Fresh installed in June (after the release of Wheezy). The command gnome-file-share-preferences (or something like that) doesn't exist. In another machine running Wheezy it lunches from the applications menu. By looking at the desktop file of the app I saw it points the above command and when I try to run that in Jessie, it doesn't exist. Or something has changed from the wheezy version up to now or this is a serious bug, which is preventing file-sharing at all. Don't know how much debugging info can I provide as there seems to be no runtime error, but a missing executable! Cheers
