Compiling IB documents for earlier than iOS 7 is no longer supported Posted by Gerard Grundy Date January 31, 2020 Comments 0 comment Select the IB interface.Then:Make sure Build for is above the required level. Related Tag:troubleshooting, Xcode programming Share: Gerard Grundy Previous post List with an array of Strings SwiftUI 5.1 January 31, 2020 Next post dyld: dyld_sim is not compatible with the loaded process, likely due to architecture mismatch January 31, 2020 You may also like dyld: dyld_sim is not compatible with the loaded process, likely due to architecture mismatch January 31, 2020 These are the things I did to get the project to work due to this error.