Xcode 7.3.1 cannot be opened in MacOS Mojave
问题 After updating from macOS High Sierra to Mojave and I successfully installed Xcode 7.3.1 but it cannot be opened. Does Mojave support Xcode 7? 回答1: I have experienced the same issue after upgrading to macOS Mojave. The only solution which I had to do is to download Xcode 8 and migrate to Swift 3. Incase there're any alternatives, please share! 来源: https://stackoverflow.com/questions/52531863/xcode-7-3-1-cannot-be-opened-in-macos-mojave