Loader for controller 'XXX' not found.

[AlezzzRd]

Hi,

I tried to write a new controller according to the guidance in this link.
https://control.ros.org/foxy/doc/ros2_controllers/doc/writing_new_controller.html

I think my export definition for pluginlib in the CMakeList file and at the bottom of the controller .cpp file are correct. But when I tried to spawn the controller using code as follows.

  effort_position_controller_spawner = Node(
      package="controller_manager",
      executable="spawner.py",
      arguments=["effort_position_controller", "--controller-manager", "/controller_manager"],
  )

I got the error as follows.

Could you help me to think where the problem might occur? Thanks a lot.

[AlezzzRd]

I think I fixed it by adding this in the CMakeList file.

target_compile_definitions(${PROJECT_NAME} PUBLIC "PLUGINLIB__DISABLE_BOOST_FUNCTIONS")

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