How to Empty Caches and Clean All Targets Xcode 4 and later

Question

Jonathan suggest here: Xcode Includes .xib files that have been deleted! that cleaning all targets and empty the caches will fix the problem with Xcode including deleted .xi

Answer 1

My "DerivedData" with Xcode 10.2 and Mojave was here:

MacHD/Users/[MyUser]/Library/Developer/Xcode