I'm trying to launch gazebo with ros by
roslaunch gazebo_ros empty_world.launch
I get the following errors
(gzclient:4946): GLib-GObject-WARNING **: 14:51:55.930: cannot register existing type 'GtkIMContext'
(gzclient:4946): GLib-CRITICAL **: 14:51:55.930: g_once_init_leave: assertion 'result != 0' failed
(gzclient:4946): GLib-GObject-CRITICAL **: 14:51:55.930: g_type_register_dynamic: assertion 'parent_type > 0' failed
(gzclient:4946): GLib-GObject-CRITICAL **: 14:51:55.930: g_object_new_with_properties: assertion 'G_TYPE_IS_OBJECT (object_type)' failed
I installed ros and gazebo with `ros-melodic-desktop-full` package
and I'm on a Ubuntu 18.04 system
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