Based on a quick search google, I found this
https://github.com/rvm/rvm/issues/3744
Does reinstalling xcode work for you? Here is the recommended code:
xcode-select --install
Based on a quick search google, I found this
https://github.com/rvm/rvm/issues/3744
Does reinstalling xcode work for you? Here is the recommended code:
xcode-select --install