Controller Spawner stuck while loading - Melodic - Ubuntu 18.04

asked 2023-04-14 11:28:26 -0500

ghelfrich gravatar image

updated 2023-04-14 11:29:04 -0500


I am using the github repository ( in an attempt to control the AR3 robot using ROS. When I run Moveit! or Gazebo, my controllers spawn correctly and everything works. However, when I plug the robot into my laptop and attempt to run the ar3_hardware_bringup.launch file, the console output gets stuck on loading the controllers defined in the controllers.yaml file. The controllers and variables are loaded onto the parameter server.

As described here (, a multi-threaded spinner is used in the hardware_interface node. I am at a loss in trouble shooting why the controller spawner gets stuck loading the controllers.

Please let me know if any other information is required to help solve this issue.

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