hi all,

I cannot use stan in Mac, it shew that:

Error in if (nchar(CXX) == 0) { : argument is of length zero

if I didn’t install Xcode, is there anyway to solve this problem?


The question is somewhat unclear. Did you install Xcode?

no, I didn’t, but I saw one of the solution should install Xcode.

It looks like you have installed R. How did you install it?