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Troubleshooting
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===============
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General
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-------
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* Check that you don't have messages such `exception was not handled`.
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* Add prints everywhere to find where the program hangs.
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Executable not found
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--------------------
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* Make sure to build and to source the environment with `start-tdde05`
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* Make sure your `setup.py` is well formed (in particular, there should be a `,` if you have two or more executable).
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Topic, Service, Action not working
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----------------------------------
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* Check the types and names are correct (they should match what you get from `ros2 topic`, `ros2 service` and `ros2 action` commands).
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* Check the node is spinning, i.e., that it was added to an executor, that the executor is spinning.
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* If making a service/action call from a callback, make sure you are using a `MultiThreadedExecutor` and that `ReentrantGroup` are set correctly.
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* Make sure that you are not that not using `rclpy.spin*` functions with a custom created executor. |
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\ No newline at end of file |
