fatal error encountered while deserializing SIL global “UIEdgeInsetsZero”

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Category:Languages

Using Swift 4.2 with Xcode 10 beta, if I write:

import UIKit let foo: UIEdgeInsets = .zero 

Then I get a fatal error at compile time:

*** DESERIALIZATION FAILURE (please include this section in any bug report) *** result is ambiguous 0  swift                    0x000000010784fc5a PrintStackTraceSignalHandler(void*) + 42 1  swift                    0x000000010784f066 SignalHandler(int) + 966 2  libsystem_platform.dylib 0x00007fff62a5ef5a _sigtramp + 26 3  libsystem_platform.dylib 0x0000000000000010 _sigtramp + 2639925456 4  libsystem_c.dylib        0x00007fff627fc1ae abort + 127 5  swift                    0x0000000104cf599b swift::ModuleFile::fatal(llvm::Error) + 1915 6  swift                    0x0000000104d2d4d2 swift::SILDeserializer::readGlobalVar(llvm::StringRef) + 1890 7  swift                    0x0000000104dd7f9a swift::SerializedSILLoader::getAllForModule(swift::Identifier, swift::FileUnit*) + 234 8  swift                    0x0000000103b2adbe performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 34750 9  swift                    0x0000000103b1f10f swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 7839 10 swift                    0x0000000103ac8c48 main + 13144 11 libdyld.dylib            0x00007fff62750015 start + 1 12 libdyld.dylib            0x0000000000000041 start + 2643132461 Stack dump: 0.  Program arguments: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -merge-modules -emit-module /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Objects-normal/x86_64/ViewController~partial.swiftmodule /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Objects-normal/x86_64/AppDelegate~partial.swiftmodule /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Objects-normal/x86_64/Edgy~partial.swiftmodule -parse-as-library -sil-merge-partial-modules -disable-diagnostic-passes -disable-sil-perf-optzns -target x86_64-apple-ios12.0-simulator -enable-objc-interop -sdk /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.0.sdk -I /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Products/Debug-iphonesimulator -F /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/coeur/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 4.2 -enforce-exclusivity=checked -Onone -D DEBUG -serialize-debugging-options -Xcc -working-directory -Xcc /Users/coeur/Development/Edgy -Xcc -I/Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Edgy-generated-files.hmap -Xcc -I/Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Edgy-own-target-headers.hmap -Xcc -I/Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Edgy-all-target-headers.hmap -Xcc -iquote -Xcc /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Edgy-project-headers.hmap -Xcc -I/Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/DerivedSources/x86_64 -Xcc -I/Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/DerivedSources -Xcc -DDEBUG=1 -emit-module-doc-path /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Objects-normal/x86_64/Edgy.swiftdoc -emit-objc-header-path /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Objects-normal/x86_64/Edgy-Swift.h -module-name Edgy -o /Users/coeur/Library/Developer/Xcode/DerivedData/Edgy-gbvthkytwkmyekdynhvvbtmysdbk/Build/Intermediates.noindex/Edgy.build/Debug-iphonesimulator/Edgy.build/Objects-normal/x86_64/Edgy.swiftmodule  1.  While deserializing SIL global "UIEdgeInsetsZero" error: Abort trap: 6 

 


I found a workaround for Xcode 10 beta. Just include this somewhere in your project:

#if swift(>=4.2) import UIKit.UIGeometry extension UIEdgeInsets {     public static let zero = UIEdgeInsets() } #endif 

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