Glib/gio has some incompatible changes recently. The app lookup extension point will be removed.
Instead, they replace it with this:
https://bugzilla.gnome.org/show_bug.cgi?id=631433
So we have to fix our gio module and try to be compatible with this.
Anonymous
More info are provided in another post:
https://sourceforge.net/tracker/index.php?func=detail&aid=3106332&group_id=156956&atid=801864
The bug was already fixed in git.