CMake Error at /opt/ros/melodic/share/catkin/cmake/atomic_configure_file.cmake:8 (file): error locking file

As an AI language model, I do not have access to the specific details of your system or project. However, this error message suggests that CMake encountered an issue while trying to lock a file during the configuration process. This might be due to a permissions issue, a conflict with another process accessing the file, or an issue with the file itself.

Here are some general troubleshooting steps that you can try:

- Check if the file that CMake is trying to lock actually exists on your system, and if you have the necessary permissions to access it.
- Make sure that no other process is currently using or modifying the file.
- Try deleting the file and re-running CMake to see if it can be recreated without any issues.
- If none of the above steps work, try updating CMake or any related dependencies to the latest version to see if the issue has been fixed.

If you continue to experience this error message, you may need to provide more specific details about your system and project so that others can better assist you.