JointPositionController not working. No callback called
I've tried to make the katana arm bot to learn to use ros and gazebo. I follow step by step the video from The Construct - My Robotic Manipulator on youtube making adjust to the katana_arm. In rviz the arm works but when i spawn the arm in gazebo with the JointPositionController only two joints moves. I am new on ROS. Can somebody help me? You can find my project on github ( https://github.com/DMPatod/ros_arm )
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