[Mac] xcrun error: invalid active developer path missing xcrun

If we met this issue after mac upgrade
there is two solution

xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

Go back to your terminal and enter:

xcode-select --install

You'll then receive the following output:

xcode-select: note: install requested for command line developer tools

If it's not work by "Software not found on server", try with solution two

Login or sign up here:

https://developer.apple.com/download/more/

Look for: Command Line Tools for Xcode 12 in the list of downloads