File "/home/ikapinus/catkin_ws/src/ar-table-itable/art_projected_gui/src/gui/ui_core_ros.py", line 258, in interface_state_evt
self.add_place(translate("UICoreRos", "OBJECT PLACE POSE"), it.place_pose, obj.object_type, obj_id, fixed=True)
AttributeError: 'NoneType' object has no attribute 'object_type'