UR3 Project Part 1

Someone please tell about the error, in rviz every thing is working fine but nothing happens in gazebo, I
tried to solve it but couldnot, Kindly help. ros_controller.yaml file and error images are attached.


Duplicate of Ur3 Project Part1 Problem - Course Support / ROS Manipulation In 5 Days - The Construct ROS Community (robotigniteacademy.com)