Unable to preview SwiftUI targeting framework

Hi,

Using an Apple silicon mac, I am unable to preview the SwiftUI targeting the framework in a project with EXCLUDED_ARCHS[sdk=iphonesimulator*] set to arm64.

Sample project

The following log seems to indicate that the x86_64 binary was built according to the build settings, but what was actually needed was the arm64 binary.

I would like to know if anyone knows how to solve this problem.

Thanks.

PotentialCrashError: Update failed



XCPreviewAgent may have crashed. Check ~/Library/Logs/DiagnosticReports for any crash logs from your application.



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|  RemoteHumanReadableError

|  

|  LoadingError: failed to load library at path "/Users/me/Library/Developer/Xcode/DerivedData/SwiftUIQuestionSample-bqvuazkgqqnpkbdvedgtbpnnzgnw/Build/Intermediates.noindex/Previews/UIComponents/Products/Debug-iphonesimulator/UIComponents.framework/UIComponents": Optional(dlopen(/Users/me/Library/Developer/Xcode/DerivedData/SwiftUIQuestionSample-bqvuazkgqqnpkbdvedgtbpnnzgnw/Build/Intermediates.noindex/Previews/UIComponents/Products/Debug-iphonesimulator/UIComponents.framework/UIComponents, 0x0000): tried: '/Users/me/Library/Developer/Xcode/DerivedData/SwiftUIQuestionSample-bqvuazkgqqnpkbdvedgtbpnnzgnw/Build/Intermediates.noindex/Previews/UIComponents/Products/Debug-iphonesimulator/UIComponents.framework/UIComponents' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')), '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/Users/me/Library/Developer/Xcode/DerivedData/SwiftUIQuestionSample-bqvuazkgqqnpkbdvedgtbpnnzgnw/Build/Intermediates.noindex/Previews/UIComponents/Products/Debug-iphonesimulator/UIComponents.framework/UIComponents' (errno=2), '/Users/me/Library/Developer/Xcode/DerivedData/SwiftUIQuestionSample-bqvuazkgqqnpkbdvedgtbpnnzgnw/Build/Intermediates.noindex/Previews/UIComponents/Products/Debug-iphonesimulator/UIComponents.framework/UIComponents' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')), '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Library/Developer/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/UIComponents.framework/UIComponents' (errno=2))

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|  ==================================

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|  |  MessageSendFailure: Message send failure for <ServiceMessage 3: update>
Unable to preview SwiftUI targeting framework
 
 
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