``` Stack dump: 0. Program arguments: /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2020-12-23-a.xctoolchain/usr/bin/swift-frontend -frontend -c -primary-file /Users/ericv/Documents/Coding/TC/App/Tapped/Tapped/ContentView.swift /Users/ericv/Documents/Coding/TC/App/Tapped/Tapped/TappedApp.swift -emit-module-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView~partial.swiftmodule -emit-module-doc-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView~partial.swiftdoc -emit-module-source-info-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView~partial.swiftsourceinfo -serialize-diagnostics-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView.dia -emit-dependencies-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView.d -emit-reference-dependencies-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView.swiftdeps -target arm64-apple-ios15.2-simulator -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.2.sdk -I /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Products/Debug-iphonesimulator -F /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/ericv/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity=checked -Onone -D DEBUG -serialize-debugging-options -enable-anonymous-context-mangled-names -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-generated-files.hmap -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-own-target-headers.hmap -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-all-target-headers.hmap -Xcc -iquote -Xcc /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-project-headers.hmap -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/DerivedSources-normal/arm64 -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/DerivedSources/arm64 -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/DerivedSources -Xcc -DDEBUG=1 -Xcc -working-directory/Users/ericv/Documents/Coding/TC/App/Tapped -target-sdk-version 15.2 -module-name Tapped -o /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/ContentView.o -index-store-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Index/DataStore -index-system-modules 1. Apple Swift version 5.3-dev (LLVM bcee1b98f3b26c5, Swift dbcf7fe1bf76226) 2. While evaluating request TypeCheckSourceFileRequest(source_file "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.2.sdk/System/Library/Frameworks/SwiftUI.framework/Modules/SwiftUI.swiftmodule/arm64-apple-ios-simulator.swiftinterface") 3. While type-checking extension of Table (at /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.2.sdk/System/Library/Frameworks/SwiftUI.framework/Modules/SwiftUI.swiftmodule/arm64-apple-ios-simulator.swiftinterface:12086:1) 4. While type-checking 'init(_:columns:)' (at /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.2.sdk/System/Library/Frameworks/SwiftUI.framework/Modules/SwiftUI.swiftmodule/arm64-apple-ios-simulator.swiftinterface:12087:10) 5. While evaluating request InterfaceTypeRequest(SwiftUI.(file).Table extension.init(_:columns:)@/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.2.sdk/System/Library/Frameworks/SwiftUI.framework/Modules/SwiftUI.swiftmodule/arm64-apple-ios-simulator.swiftinterface:12087:10) 6. While canonicalizing generic signature <τ_0_0, τ_0_1, τ_0_2, τ_1_0 where τ_0_0 == τ_0_1.TableRowValue, τ_0_1 == TableForEachContent<τ_1_0>, τ_0_2 : TableColumnContent, τ_1_0 : RandomAccessCollection, τ_0_1.TableRowValue == τ_0_2.TableRowValue> in requirement #0 0 swift-frontend 0x0000000104ad9c28 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 52 1 swift-frontend 0x0000000104ad8e88 llvm::sys::RunSignalHandlers() + 128 2 swift-frontend 0x0000000104ada210 SignalHandler(int) + 292 3 libsystem_platform.dylib 0x00000001962ac4e4 _sigtramp + 56 4 libsystem_pthread.dylib 0x0000000196294eb0 pthread_kill + 288 5 libsystem_c.dylib 0x00000001961d2314 abort + 164 6 libsystem_c.dylib 0x00000001961d172c err + 0 7 swift-frontend 0x0000000104efe4e4 swift::CanGenericSignature::getCanonical(swift::ArrayRefView<swift::Type, swift::GenericTypeParamType*, swift::GenericTypeParamType* swift::staticCastHelper<swift::GenericTypeParamType>(swift::Type const&), true>, llvm::ArrayRef<swift::Requirement>, bool) (.cold.46) + 0 8 swift-frontend 0x0000000101d97074 swift::CanGenericSignature::getCanonical(swift::ArrayRefView<swift::Type, swift::GenericTypeParamType*, swift::GenericTypeParamType* swift::staticCastHelper<swift::GenericTypeParamType>(swift::Type const&), true>, llvm::ArrayRef<swift::Requirement>, bool) + 2092 9 swift-frontend 0x0000000101d96708 swift::GenericSignatureImpl::getCanonicalSignature() const + 56 10 swift-frontend 0x0000000101d966b4 swift::GenericSignatureImpl::isCanonical() const + 28 11 swift-frontend 0x0000000101c32cf0 swift::GenericFunctionType::get(swift::GenericSignature, llvm::ArrayRef<swift::AnyFunctionType::Param>, swift::Type, swift::ASTExtInfo) + 216 12 swift-frontend 0x0000000101a31cd0 swift::InterfaceTypeRequest::evaluate(swift::Evaluator&, swift::ValueDecl*) const + 1472 13 swift-frontend 0x0000000101d15728 llvm::Expected<swift::InterfaceTypeRequest::OutputType> swift::Evaluator::getResultUncached<swift::InterfaceTypeRequest>(swift::InterfaceTypeRequest const&) + 452 14 swift-frontend 0x0000000101d15474 llvm::Expected<swift::InterfaceTypeRequest::OutputType> swift::Evaluator::getResultCached<swift::InterfaceTypeRequest, (void*)0>(swift::InterfaceTypeRequest const&) + 172 15 swift-frontend 0x0000000101ce1bd0 swift::InterfaceTypeRequest::OutputType swift::evaluateOrDefault<swift::InterfaceTypeRequest>(swift::Evaluator&, swift::InterfaceTypeRequest, swift::InterfaceTypeRequest::OutputType) + 52 16 swift-frontend 0x0000000101cd7d18 swift::ValueDecl::getInterfaceType() const + 76 17 swift-frontend 0x0000000101a4fd4c swift::ASTVisitor<(anonymous namespace)::DeclChecker, void, void, void, void, void, void>::visit(swift::Decl*) + 740 18 swift-frontend 0x0000000101a4f4bc (anonymous namespace)::DeclChecker::visit(swift::Decl*) + 168 19 swift-frontend 0x0000000101a51650 swift::ASTVisitor<(anonymous namespace)::DeclChecker, void, void, void, void, void, void>::visit(swift::Decl*) + 7144 20 swift-frontend 0x0000000101a4f4bc (anonymous namespace)::DeclChecker::visit(swift::Decl*) + 168 21 swift-frontend 0x0000000101a4f400 swift::TypeChecker::typeCheckDecl(swift::Decl*) + 132 22 swift-frontend 0x0000000101ae64b8 swift::TypeCheckSourceFileRequest::evaluate(swift::Evaluator&, swift::SourceFile*) const + 164 23 swift-frontend 0x0000000101ae7564 llvm::Expected<swift::TypeCheckSourceFileRequest::OutputType> swift::Evaluator::getResultUncached<swift::TypeCheckSourceFileRequest>(swift::TypeCheckSourceFileRequest const&) + 460 24 swift-frontend 0x0000000101ae72c0 llvm::Expected<swift::TypeCheckSourceFileRequest::OutputType> swift::Evaluator::getResultCached<swift::TypeCheckSourceFileRequest, (void*)0>(swift::TypeCheckSourceFileRequest const&) + 152 25 swift-frontend 0x0000000101ae631c swift::TypeCheckSourceFileRequest::OutputType swift::evaluateOrDefault<swift::TypeCheckSourceFileRequest>(swift::Evaluator&, swift::TypeCheckSourceFileRequest, swift::TypeCheckSourceFileRequest::OutputType) + 44 26 swift-frontend 0x0000000100f8d930 swift::CompilerInstance::forEachFileToTypeCheck(llvm::function_ref<void (swift::SourceFile&)>) + 144 27 swift-frontend 0x0000000100f8d874 swift::CompilerInstance::performSema() + 76 28 swift-frontend 0x0000000100f96028 std::__1::error_code llvm::function_ref<std::__1::error_code (swift::SubCompilerInstanceInfo&)>::callback_fn<swift::ModuleInterfaceBuilder::buildSwiftModuleInternal(llvm::StringRef, bool, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >*, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >)::$_1::operator()() const::'lambda'(swift::SubCompilerInstanceInfo&)>(long, swift::SubCompilerInstanceInfo&) + 768 29 swift-frontend 0x0000000100f9d194 swift::InterfaceSubContextDelegateImpl::runInSubCompilerInstance(llvm::StringRef, llvm::StringRef, llvm::StringRef, swift::SourceLoc, llvm::function_ref<std::__1::error_code (swift::SubCompilerInstanceInfo&)>) + 2432 30 swift-frontend 0x0000000100f95cfc void llvm::function_ref<void ()>::callback_fn<swift::ModuleInterfaceBuilder::buildSwiftModuleInternal(llvm::StringRef, bool, std::__1::unique_ptr<llvm::MemoryBuffer, std::__1::default_delete<llvm::MemoryBuffer> >*, llvm::ArrayRef<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >)::$_1>(long) + 116 31 swift-frontend 0x0000000104a50f40 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) + 244 32 swift-frontend 0x0000000104a5102c RunSafelyOnThread_Dispatch(void*) + 52 33 swift-frontend 0x0000000104adafb4 threadFuncSync(void*) + 16 34 libsystem_pthread.dylib 0x0000000196295240 _pthread_start + 148 35 libsystem_pthread.dylib 0x0000000196290024 thread_start + 8 error: Abort trap: 6 (in target 'Tapped' from project 'Tapped') ``` ``` CompileSwift normal arm64 /Users/ericv/Documents/Coding/TC/App/Tapped/Tapped/TappedApp.swift (in target 'Tapped' from project 'Tapped') cd /Users/ericv/Documents/Coding/TC/App/Tapped /Library/Developer/Toolchains/swift-DEVELOPMENT-SNAPSHOT-2020-12-23-a.xctoolchain/usr/bin/swift-frontend -frontend -c /Users/ericv/Documents/Coding/TC/App/Tapped/Tapped/ContentView.swift -primary-file /Users/ericv/Documents/Coding/TC/App/Tapped/Tapped/TappedApp.swift -emit-module-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp\~partial.swiftmodule -emit-module-doc-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp\~partial.swiftdoc -emit-module-source-info-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp\~partial.swiftsourceinfo -serialize-diagnostics-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp.dia -emit-dependencies-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp.d -emit-reference-dependencies-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp.swiftdeps -target arm64-apple-ios15.2-simulator -Xllvm -aarch64-use-tbi -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator15.2.sdk -I /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Products/Debug-iphonesimulator -F /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/ericv/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity\=checked -Onone -D DEBUG -serialize-debugging-options -enable-anonymous-context-mangled-names -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-generated-files.hmap -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-own-target-headers.hmap -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-all-target-headers.hmap -Xcc -iquote -Xcc /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Tapped-project-headers.hmap -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/DerivedSources-normal/arm64 -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/DerivedSources/arm64 -Xcc -I/Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/DerivedSources -Xcc -DDEBUG\=1 -Xcc -working-directory/Users/ericv/Documents/Coding/TC/App/Tapped -target-sdk-version 15.2 -module-name Tapped -o /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Build/Intermediates.noindex/Tapped.build/Debug-iphonesimulator/Tapped.build/Objects-normal/arm64/TappedApp.o -index-store-path /Users/ericv/Library/Developer/Xcode/DerivedData/Tapped-cqvbqqsgozmxqbeiacqsguplfrhi/Index/DataStore -index-system-modules Command CompileSwift failed with a nonzero exit code ```