Can you show us the value of the `controller_joint_names` parameter? And could you please post the output of `roslaunch` when you start it with the `--screen` command line option? --- [Visit Topic](https://discourse.ros.org/t/using-the-motoman-sda20d-dual-arms-dx100-ros-interface-indigo/4667/8) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: