Invalid active developer path on MAC OS X after installing Ruby

Question

I get this error:

xcrun: error: invalid active developer path (/Applications/Xcode.app), missing xcrun at: /Applications/Xcode.app/usr/bin/xcrun

Answer 1

I had faced the same issue when i removed one of the two Xcode installed.

I have solve this issue by Switching the path using terminal like below

$ sudo xcode-select --switch (drag Xcode here to get a path)

e.g sudo xcode-select --switch /Applications/Xcode\ 10.1.app