ROS报错：未安装arbotix控制器

ERROR: cannot launch node of type [arbotix_python/arbotix_driver]: arbotix_python
ROS path [0]=/opt/ros/melodic/share/ros
ROS path [1]=/home/ghh/catkin_ws/src
ROS path [2]=/opt/ros/melodic/share
ERROR: cannot launch node of type [arbotix_controllers/gripper_controller]: arbotix_controllers
ROS path [0]=/opt/ros/melodic/share/ros
ROS path [1]=/home/ghh/catkin_ws/src
ROS path [2]=/opt/ros/melodic/share

问题解决，没有安装arbotix控制器

sudo apt-get install ros-melodic-arbotix

继续。

roslaunch marm_description fake_arm.launch 

成功显示。