Rstan doesn't run and stops R from generating error messages

After upgrading my Mac to Catalina, my RStan doesn't run and after running it, it stops my R from generating error messages. Can someone help me with this?...

There are two lengthy threads on the Stan Forum about Catalina problems. One has 197 posts and the other has 44.

There seems to be a lot of messing with compilers and the Makevars file. I wish I could distill it down to something helpful but I cannot. Posting over there might get you closer to an answer.

This topic was automatically closed 54 days after the last reply. New replies are no longer allowed.