I'm trying to update already installed packages, one of which is pkgconfig if that's relevant. I keep trying to update the package, but it keeps restarting with no end. It gives me this:
> install.packages("pkgconfig")
Error in install.packages : Updating loaded packages
I tried installing a new package, but it gave me this error:
Package gridtext has compiled code, but no suitable compiler(s) were found. Installation will likely fail.
Install Rtools (https://cran.r-project.org/bin/windows/Rtools/).Then use the pkgbuild package, or make sure that Rtools in the PATH.
What do I do?