Issues installing Rtool40

Hi, I'm trying to install Rtools_40 because when I tried to install a package called "ggplot2" I would get an error message saying Rtools has not been installed with a whole bunch of url's to follow.

I've gone to the website and downloaded the exe. file. Now, I am trying to " put the location of the Rtools make utilities ( bash , make , etc) on the PATH) " as the instructions put it. I tried to use R to place the make utilities but I get this error message everytime.

Error|690x367

I should also mention I'm using R4.0.2 and Windows 10.

Not sure why that won't work, can you share the results of these three commands?

file.exists("~/.Renviron")
file.info("~/.Renviron")
Sys.which("ls")