Running centerpose yields an error

I deployed according to the previous steps, but suddenly a new error occurred and I don’t know what to do. I hope someone can answer it.
When I run ros2 launch isaac_ros_ samples isaac_ros_ samples. launch. py launch_fragments:= realsense_mono_rect,centerpose,centerpose_visualizer model_name:=centerpose_shoe model_repository_paths:=[${ISAAC_ROS_WS}/isaac_ros_assets/models]
The following error occurred
[ERROR] [launch_ros.actions.load_composable_nodes]: Failed to load node ‘centerpose_inference’ of type ‘nvidia::isaac_ros::dnn_inference::TritonNode’ in container ‘/isaac_ros_examples/container’: Could not find requested resource in ament index

[ERROR] [launch_ros.actions.load_composable_nodes]: Failed to load node ‘centerpose_visualizer’ of type ‘nvidia::isaac_ros::centerpose::CenterPoseVisualizerNode’ in container ‘/isaac_ros_examples/container’: Failed to find class with the requested plugin name.

Warning: class_loader.impl: SEVERE WARNING!!! A namespace collision has occurred with plugin factory for class rclcpp_components::NodeFactoryTemplatenvidia::isaac_ros::centerpose::CenterPoseDecoderNode. New factory will OVERWRITE existing one.
Can you tell me the reason for this? Is it because I haven’t built the isaac_ros-d nn_inference package?
And how to build this isaac_ros_denn_inference package, which contains many units

Hello @1781113105, and thank you, @firacodee, for your response.

Another reason could be that after working on your Isaac ROS Docker, you turned it off and restarted. In this case, you need to reinstall the isaac_ros_dnn_inference node.

Best,
Raffaello

Hello, the issue has been resolved. The reason was that some dependencies were removed in an unknown situation, so I just need to download or build them again. However, I am currently experiencing a new problem and have been stuck for several days. When I started ros2 launch isaac_ros_centerpose isaac_ros_centerpose riton. launch. py and mapped the camera topic through the mapping, the program started normally without any errors, but my/centerpose/image_isualized did not have any information. What is the problem?