Failed to load module "pk-gtk-module"

[Richard Ryniker]

This is bug 747449, presumably just a case of a missing dependency.  I
bumped into it when I invoked system-config-users.  Because multiple
applications fail, and therefore can inflict pain on many users, does it
make sense to add something to "Common Bugs"?
 
The work-around (install PackageKit-gtk3-module) is simple.  My concern
is with the number of users who may have to learn what to do.  I expect
then to look at Common Bugs, but a BZ search is a larger effort.

https://bugzilla.redhat.com/show_bug.cgi?id=747449