I can't install the gplots package - Non zero exit status

[RS33]

[jrkrideau]

What version of R are you using?

The warning about caTools seems to suggest that you need an updated version of R.

The most recent version of R is 4.0.3.

[Timesaver]

You are using version 3.5 of R. caTools requires version 3.6 or higher.