I am using OSX 10.9.3 in my Mac Mini and XCode 5.0.2. When I execute my project as iPhone retina (3.5 inch) and iPhone retina (4.0 inch) it executes smoothly without any errors but if I want to execute on iPhone retina (4-inch 64-bit), when I select this simulator there is a fatal error: I am using OSX 10.9.3 in my Mac Mini and XCode