Composers Desktop Project Forum

I am also having this issue. PortAudio is installed on my system, and for good measure I installed libportaudio2 in case that is what is referenced, no change. I also did a search and the pa_ringbuffer.h file is in the portaudio directory.
I'm willing to try the solution you suggested of deleting the directories but which directories should I delete? Should I junk the whole build folder or should I get into specific ones and delete those to get it to correct itself?