Xcode 10 build fails with 'Command CompileSwift failed with a nonzero exit code
问题 I updated Xcode to version 10 recently and started to receive a strange error when trying to build my project. I'm currently on Swift 4.0 and I did try to upgrade to swift Version 4.2. But when I did I received this same error in many of my frameworks. Command Compile Swift failed with a nonzero exit code So far I've deleted the derived folder. Updated all pods, also deleted all pods and reinstalled them using the terminal commands below. sudo gem install cocoapods-deintegrate cocoapods-clean