[ros-users] [Discourse.ros.org] [Next Generation ROS] ROS2: DebugModuleNotFoundError: No module named 'rclpy._rclpy'

[Mikael Arguedas]

thanks @mrutyu1987 for reporting.

By the look of it it looks like the python debug libraries have not been found when you built.

Can you confirm that you have a file called `_rclpy_d.pyd` in `D:\Test\ROS_Source_Build\Debug_Python\install\Lib\site-packages\rclpy` ?

I would expect the result to be the same but can you try to run the executable directly:
```
call D:\Test\ROS_Source_Build\Debug_Python\install\setup.bat
D:\Test\ROS_Source_Build\Debug_Python\install\Lib\demo_nodes_py\talker.exe
```

Finally can you provide your build output of rclpy and demo_nodes_py ?
```
rmdir /S D:\Test\ROS_Source_Build\Debug_Python\build\demo_nodes_py D:\Test\ROS_Source_Build\Debug_Python\build\rclpy
python_d D:\Test\ROS_Source_Build\Debug_Python\src\ament\ament_tools\scripts\ament.py build --cmake-args -DCMAKE-BUILD_TYPE=Debug -- --only rclpy demo_nodes_py
```

Thanks!





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