Robot model parameter not found

edit

I've created a move_group configuration for my robot but anytime I try to run the moveit_commander using rosrun moveit_commander moveit_commander_cmdline.py, I get a

Robot model parameter not found! Did you remap 'robot_description'?

error.

When I ran my rosparam list|grep robot_description_semantic and rosparam list|grep robot_description. I noticed the robot_description and robot_description_semantic are in the namespace /robot/robot_description and /robot/robot_description_semantic. How do I run moveit_commander in a specific namespace since I'm running multiple robot?

Thanks.

Edit:

[ERROR] [1551552307.036199597, 701.961000000]: Robot model parameter not found! Did you remap 'robot_description'?
Traceback (most recent call last):
  File "/home/user/catkin_ws/src/moveit/moveit_commander/bin/moveit_commander_cmdline.py", line 166, in <module>
    run_interactive(opt.group_name)
  File "/home/user/catkin_ws/src/moveit/moveit_commander/bin/moveit_commander_cmdline.py", line 91, in run_interactive
    c = MoveGroupCommandInterpreter()
  File "/home/user/catkin_ws/src/moveit/moveit_commander/src/moveit_commander/interpreter.py", line 65, in __init__
    self._robot = RobotCommander()
  File "/home/user/catkin_ws/src/moveit/moveit_commander/src/moveit_commander/robot.py", line 151, in __init__
    self._r = _moveit_robot_interface.RobotInterface(robot_description, ns)
RuntimeError: RobotInterfacePython: invalid robot model