In theory, rstudio should work with different versions of R. Rstudio server Pro has a dropdown menu to pick R version after launching Rstudio. Unfortunately, this feature is not available for open-source. During the installation of Rstudio server, I had to pick a R version to go with. This restriction can be altered by setting RSTUDIO_WHICH_R environmental variable before launching Rstudio. Could we test this?
module switch R/3.5.0 # switch might be necessary as rstudio/1.1.380_server requires prereq("R/3.4.2")
export RSTUDIO_WHICH_R=/usr/local/R/3.5.0
Then launch rstudio-server-1.1.380 to see if it can load R/3.5.0.
From Shameema:
Then launch rstudio-server-1.1.380 to see if it can load R/3.5.0.
Corresponding incident is INC0330879.