@andrjohns I’ve been having nearly the exact same problems as @kblake … I get a very similar error message when I run the rstan example. And then when I do
install.packages(c("rstan","StanHeaders"),type="source")
It only works for StanHeaders, but not rstan (same as kblake).
I see your post about installing an older version of BH, but I’m hoping to troubleshoot my actual rstan installation.