I infer from your error log that you are getting an error while generating ROS messages. Usually this is caused due to a non-ASCII character in any environment variable. Since you mention that this is not the case, here are the other scenaios where you could potentially face such an error:
1) Check Python and CMake versions:
Check for mismatches in the Python and CMake versions. Also ensure that they are compatible with ROS and MATLAB. This can cause unexpected errors if not paid attention to.
2) Environment variables:
Check if the environment variables do not have any unexpected values. This could cause potential issues.
3) Check for corrupted files:
Corrupted files while can cause errors while building. Try deleting and regenerating the message files to see if this resolves the issue.
4) Python environment:
Ensure that the Python virtual environment used by MATLAB is correctly set up. You can try recreating this environment to ensure it’s not corrupted.
5) Clear the CMake cache:
Clear the CMake cache. Sometimes stale cache files can cause issues. You can delete the CMakeCache.txt file in your build directory and try rebuilding.
There could be a few causes of the unexpected error like this. As a lot of variables are involved it is good to be sure of the origin of the issue. I hope the above information helps you in narrowing down the cause of the issue.
Regards,
Avadhoot.
