I have a lot of problems with the costum controllers in the training environment. They always generate a fail to load error message even if i reset the web environment as prescribe.
I have installed locally both exercises in my computer and it is working perfectly.
Aldo it did to work at the first time and a have found a way to check that the cortrollers were ok using the following command.
rosservice call controller_manager/list_controller_types | grep “/PositionController”
wich gave the following answer joint_state_controller/JointStateController, my_controller/PositionController, pos_vel_acc_controllers/JointTrajectoryController, position_controllers/JointTrajectoryController, project_controller/PositionController,
When i have my controllers in that list, it can be loaded without problems
If i try to do the same thing in the web environement that the service is not working:
ERROR: Service [/controller_manager/list_controller_types] is not available.