I have been trying to run some Stan models that I have worked with previously and now out of the sudden I can not install the package rstan. I have updated the R version, although it was suggested that version 4.2.0 could not work. Hence, I have installed version 3.3.0 which was the one that the new version of Rstudio suggested. However, I keep on having the following message:
I have tried the following:
- Restart rstudio and physically close it.
- Install Rtools under the version 4.0
- Call the stan package from the github (stan website).
I haven’t been successful with any of these options. Any suggestions?