macOS Mojave: invalid active developer path after updating to Mojave from High Sierra

Question

After upgrading to macOS Mojave, I tried to run GIT from Terminal but it kept giving me the following error:

xcrun: error: invalid active developer path (

Answer 1

when I use git in the terminal:

then I run it:

sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer