i had the same error while trying to open gedit on linux mint. just exit from the root access and try doing the same in the normal account(non-elevated) user.
that solved my problem #happymintuser -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/694279 Title: GLib- GIO:ERROR:/build/buildd/glib2.0-2.26.1/gio/gdbusconnection.c:2270:initable_init: assertion failed: (connection->initialization_error == NULL), when running as root To manage notifications about this bug go to: https://bugs.launchpad.net/qbzr/+bug/694279/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs