users-admin isn't part of the stock GNOME3 experience, but it should work if you still need it rather than the new users control panel.
The crash here comes from a bad packaging/build that mixes GTK2 and GTK3 symbols: #2 0x00007f87f66eca22 in g_logv (log_domain=0x7f87f95c779b "Gtk", log_level=<value optimized out>, format=0x7f87f9659d88 "GTK+ 2.x symbols detected. Using GTK+ 2.x and GTK+ 3 in the same process is not supported", args1=0x7fff2b3ab690) at /build/buildd/glib2.0-2.28.6/./glib/gmessages.c:557 So that's not a crash per se, rather a broken package. users-admin 2.32 is supposed to use GTK2 only, while users-admin 3.0 uses GTK3 only. When you speak of GNOME3, do you mean you installed it from the PPA? ** Visibility changed to: Public ** Changed in: gnome-system-tools (Ubuntu) Status: New => Triaged ** Summary changed: - users-admin crashed with SIGABRT in g_option_context_parse() + users-admin crashes on start because of mixed GTK2 and 3 symbols -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-system-tools in Ubuntu. https://bugs.launchpad.net/bugs/789333 Title: users-admin crashes on start because of mixed GTK2 and 3 symbols To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/789333/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs