Reply to Xcode 16 | xcodebuild fails when providing -destination 'platform=iOS Simulator,name=iPhone 16,arch=x86_64' The solution for this seems to be to omit the arch=x86_64 from the destination and pass it as a var instead: xcodebuild -workspace CoreLibraries.xcworkspace -scheme CoreLibraries -destination 'platform=iOS Simulator,name=iPhone 15' ARCHS=x86_64 test Developer Tools & Services Xcode Sep ’24