Git is not working after macOS Update (xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools)

After upgrade to Mac Catalina I faced the same issue, I had to run couple of commands to get this fixed.

First started with:

xcode-select --install

It didn't fix the problem, had to run the following in sudo

sudo xcode-select --reset

Then, finally got fixed after I switched and set the path explicitly for active developer directory:

sudo xcode-select -s /Library/Developer/CommandLineTools

Note: In case you have Xcode installed, you may need to specify Xcode directory in this case, it should be something like this

xcode-select -s /Applications/Xcode.app 

from: https://stackoverflow.com/questions/52522565/git-is-not-working-after-macos-update-xcrun-error-invalid-active-developer-pa