Richard,
> That command downloaded ggplot2_3.3.5.tar.gz and scales.1.1.1.tar.gz
> on my hard-drive and left warning messages:
>
> installation of package(s) "scales' (and) 'ggplot2' had
non-zero exit
> status;
i would guess, that's where you need to investigate, figure out why the
install didn't work. one *possible* reason is that R is trying to
install the libraries to the system-wide library directory, and you
don't have permission to install there. but, there are a multitude of
other possible failures.
you might start by this: are you able to install other packages? if
not, you should look in one direction; if so, in another.
> I attempted tarring the files inside R and that appeared to fix the
> issue...
sadly, i don't know what that means.
good luck with the debugging!
cheers, Greg