PermissionError Errno 13 Permission denied llvm-config

This error message typically occurs when you are trying to access or modify a file or directory for which you do not have the necessary permissions. In this case, it seems that you are trying to access the "llvm-config" file, but do not have permission to do so.

To resolve this issue, you may need to obtain the necessary permissions to access the file. This can be done by either changing the ownership of the file or directory, or by granting yourself the appropriate permissions.

If you are unsure how to do this, you may want to consult with your system administrator or refer to the documentation for your operating system.