Following he Dynamixel Wrokbench e-manual. http://emanual.robotis.com/docs/en/software/dynamixel/dynamixel_workbench/#downloads

step 5.1.ROS Section: -Operators.

Controller connects fine. when running "roslaunch dynamixelworkbenchoperators joint_operator.launch" I get the following error message: "Please check motion step size. It must be equal to joint size" I can not find any documentation of where to check the motion step size, or the joint size. I am using an AX-12 motor.

This is my motion.yaml:

joint:

names: [main]

motion:

names: [zero]

zero:

step: [0.0, 0.0]

timefromstart: 3.0