In my VBox Ubuntu 16.04 desktop, running RStudio most recent update, I tried to attach the rstanarm library, but it failed with the following error:
Error in library.dynam(lib, package, package.lib) :
shared object ‘rstanarm.so’ not found
There is no lock on the rstanarm directory. I just used this program yesterday with no problems. Any thoughts what the problem is now? Thanks in advance for any suggestions.