You can't install the software because it's not available on the software update server

RStudio IDE
,
5

I ended up removing my current command line tools in terminal:
sudo rm -rf /Library/Developer/CommandLineTools

then I downloaded an older version of the command line tools since git was my main problem and it no longer runs on OSX 10.15.
(https://github.com/Homebrew/homebrew-core/issues/52490)

I did this by going to https://developer.apple.com/download/more/ and downloading Command Line Tools 11.3.1!

It works now. Not a permanent fix, but helped.

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