Thanks, after doing that it still fails in the same way as when installing RTMIDI from source: CMake Error at cmake/FindRTMIDI.cmake:51 (string): str

Thanks, after doing that it still fails in the same way as when installing RTMIDI from source: CMake Error at cmake/FindRTMIDI.cmake:51 (string): string sub-command REGEX, mode REPLACE needs at least 6 arguments total to command. I’ll see if I find some way of either compiling this one, or finding another one that does.