Hey @eskimo , thank you for helping out! I followed your instructions and yes, it crashes still (on changing the config from Build to Release) 1. Apple Swift version 5.9.2 (swiftlang-5.9.2.2.56 clang-1500.1.0.2.5) 2. Compiling with the current language version 3. While evaluating request ExecuteSILPipelineRequest(Run pipelines { PrepareOptimizationPasses, EarlyModulePasses, HighLevel,Function+EarlyLoopOpt, HighLevel,Module+StackPromote, MidLevel,Function, ClosureSpecialize, LowLevel,Function, LateLoopOpt, SIL Debug Info Generator } on SIL for GStreamerSwiftUIAppStore) 4. While running pass #4859 SILModuleTransform "PerformanceSILLinker". 5. While deserializing SIL function "$s7SwiftUI11EnvironmentV12wrappedValuexvg" 6. While deserializing SIL function "os_log_type_enabled" 7. *** DESERIALIZATION FAILURE *** *** If any module named here was modified in the SDK, please delete the *** *** new swiftmodule files from the SDK and keep only swiftinterfaces. *** module 'SwiftUI', builder version '5.9.2(5.9.2)/Apple Swift version 5.9.2 (swiftlang-5.9.2.2.56 clang-1500.1.0.2.5)', built from swiftinterface, resilient, loaded from '/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphoneos/prebuilt-modules/17.2/SwiftUI.swiftmodule/arm64-apple-ios.swiftmodule' result not found (isEnabled) Cross-reference to module 'os' ... OSLog ... in an extension in module 'os' ... isEnabled ... with type (OSLog) -> (OSLogType) -> Bool Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it): 0 swift-frontend 0x0000000104ca1abc llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56 1 swift-frontend 0x0000000107907cb0 llvm::sys::RunSignalHandlers() + 112 2 swift-frontend 0x0000000107671054 SignalHandler(int) + 352 3 libsystem_platform.dylib 0x00000001895b3a24 _sigtramp + 56 4 libsystem_pthread.dylib 0x0000000189584cc0 pthread_kill + 288 5 libsystem_c.dylib 0x0000000189494a40 abort + 180 6 swift-frontend 0x0000000103e67c2c (anonymous namespace)::ParsedAttrInfoFallThrough::~ParsedAttrInfoFallThrough() + 0 7 swift-frontend 0x0000000105700db8 std::__1::__function::__func<swift::evaluator::PerRequestReferences swift::evaluator::PerRequestReferences::makeEmpty<swift::LookupPrefixOperatorRequest>()::'lambda'(void*), std::__1::allocator<swift::evaluator::PerRequestReferences swift::evaluator::PerRequestReferences::makeEmpty<swift::LookupPrefixOperatorRequest>()::'lambda'(void*)>, void (void*)>::operator()(void*&&) + 0 8 swift-frontend 0x0000000103dbc534 swift::ModuleFile::fatal(llvm::Error) const + 44 9 swift-frontend 0x00000001057021dc swift::CyclicalRequestError<swift::LookupPrefixOperatorRequest>::~CyclicalRequestError() + 0 10 swift-frontend 0x000000010584b880 swift::SILDeserializer::readSILFunctionChecked(llvm::PointerEmbeddedInt<unsigned int, 31>, swift::SILFunction*, llvm::StringRef, bool, bool) + 1588 11 swift-frontend 0x0000000103e40f50 swift::SILDeserializer::getFuncForReference(llvm::StringRef, swift::SILType) + 504 12 swift-frontend 0x000000010585b578 swift::SILDeserializer::readSILInstruction(swift::SILFunction*, swift::SILBuilder&, unsigned int, llvm::SmallVectorImpl<unsigned long long>&) + 29524 13 swift-frontend 0x000000010584c554 swift::SILDeserializer::readSILFunctionChecked(llvm::PointerEmbeddedInt<unsigned int, 31>, swift::SILFunction*, llvm::StringRef, bool, bool) + 4872 14 swift-frontend 0x0000000105866934 swift::SILDeserializer::lookupSILFunction(swift::SILFunction*, bool) + 636 15 swift-frontend 0x0000000103edd990 swift::SILLinkerVisitor::deserializeAndPushToWorklist(swift::SILFunction*) + 88 16 swift-frontend 0x0000000103eddfb0 swift::SILLinkerVisitor::processFunction(swift::SILFunction*) + 248 17 swift-frontend 0x0000000104ef0fa4 (anonymous namespace)::SILLinker::run() (.llvm.15023899450236721039) + 136 18 swift-frontend 0x00000001072a8874 swift::SILPassManager::executePassPipelinePlan(swift::SILPassPipelinePlan const&) + 16276 19 swift-frontend 0x00000001074521c4 swift::SimpleRequest<swift::ExecuteSILPipelineRequest, std::__1::tuple<> (swift::SILPipelineExecutionDescriptor), (swift::RequestFlags)1>::evaluateRequest(swift::ExecuteSILPipelineRequest const&, swift::Evaluator&) + 56 20 swift-frontend 0x00000001072f46b8 llvm::Expected<swift::ExecuteSILPipelineRequest::OutputType> swift::Evaluator::getResultUncached<swift::ExecuteSILPipelineRequest>(swift::ExecuteSILPipelineRequest const&) + 476 21 swift-frontend 0x000000010730c424 swift::runSILOptimizationPasses(swift::SILModule&) + 472 22 swift-frontend 0x000000010529c3c0 swift::CompilerInstance::performSILProcessing(swift::SILModule*) + 572 23 swift-frontend 0x00000001071e9454 performCompileStepsPostSILGen(swift::CompilerInstance&, std::__1::unique_ptr<swift::SILModule, std::__1::default_delete<swift::SILModule>>, llvm::PointerUnion<swift::ModuleDecl*, swift::SourceFile*>, swift::PrimarySpecificPaths const&, int&, swift::FrontendObserver*) + 956 24 swift-frontend 0x00000001071e4f00 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 3020 25 swift-frontend 0x00000001071e8854 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 4568 26 swift-frontend 0x000000010724fd44 swift::mainEntry(int, char const**) + 4408 27 dyld 0x00000001892090e0 start + 2360 Command SwiftCompile failed with a nonzero exit code

After painfully going through my commit log to see at which point the app started failing to archiving, i found out the issues was the use of @Environment vars. @Environment(\.scenePhase) private var scenePhase was the culprit for me, removing that made the Archive succeed. I'm not quite sure as to why, mostly why the compiler only complains during archiving - but I assume it fails some compatibility matrix.

After fiddling around, the error goes away on upgrading the minimum deployment target to 13.1 Is this a XCode bug? While this temporarily resolves my issue - I would like to support older macOS versions later and this is still a blocker for that.

So, it worked for a while and then the error just re-appeared on deployment target 13.1 as well. Back to square one.

The solution is to use BOOL(1) instead of true (Swift bool)

Thank you for pointing me in the direction of running the app from the terminal, as it helped resolve some other issues as well. While it didn't still give me the error string, the dynamic library throwing the error was OSS, so that helped. The root of my problem appears to be a plugin cache that one of the dependent frameworks builds the first time it runs, every other time was a cache hit so the problem occurred only on the first launch.

Did you find out a solution for your problem?