It does still sound like it’s not finding the right file(s) in the Stan folders. StataStan is a relatively simple wrapper and the fact that it gets as far as printing the first version number but not the second one is indicative. Maybe you could run: set trace on then send me the extended output you get when you try it again? (You’ll want to send it to a log file ). One caveat is: if your data are sensitive, don’t do this because they will all sort in the trace output as they are written into Stan (R/S+) format.