When setting up the Mikata6_SIM robot (simulation), there were errors.
The OS is Ubuntu 18.04, ROS distribution is melodic.
trick or quit> robot 'mikata6s'
Setup robot for Mikata6_SIM
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran1']/actuator[@name='motor1']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran2']/actuator[@name='motor2']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran3']/actuator[@name='motor3']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran4']/actuator[@name='motor4']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran5']/actuator[@name='motor5']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran6']/actuator[@name='motor6']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran7']/actuator[@name='motor7']
Unknown tag "hardwareInterface" in /robot[@name='open_manipulator']/transmission[@name='tran8']/actuator[@name='motor8']
Waiting for /follow_joint_trajectory... (t/o: 3.0, #: 1)
Waiting for /state_validity_checker/set_planning_scene_diff... (t/o: 3.0)
Failed to connect the service /state_validity_checker/set_planning_scene_diff
Error: timeout exceeded while waiting for service /state_validity_checker/set_planning_scene_diff
Waiting for /state_validity_checker/get_state_validity... (t/o: 3.0)
Failed to connect the service /state_validity_checker/get_state_validity
Error: timeout exceeded while waiting for service /state_validity_checker/get_state_validity
Waiting for /state_validity_checker/get_trajectory_validity... (t/o: 3.0)
Failed to connect the service /state_validity_checker/get_trajectory_validity
Error: timeout exceeded while waiting for service /state_validity_checker/get_trajectory_validity
Waiting for /state_validity_checker/get_allowed_collision_matrix... (t/o: 3.0)
Failed to connect the service /state_validity_checker/get_allowed_collision_matrix
Error: timeout exceeded while waiting for service /state_validity_checker/get_allowed_collision_matrix
Failed to setup robot: Mikata6_SIM
Note that this error is not critical. We can use the robot even after these errors.