Build error in Xcode v16.0 beta 5

[OIO-WPK]

Question

Anyone else have issues building in Xcode 16 beta 5?

Additional Context

Beta 4 was OK. With beta 5, projects with CodableCSV package have build errors.

System

• OS: macOS 14.6.1
• CodableCSV: 0.6.7

[kavoye]

CrunchyBagel@50dfdca

[iago849]

CrunchyBagel@50dfdca

even specifying

pod 'CodableCSV', :git => 'https://github.com/dehesa/CodableCSV.git', :branch => 'develop', :commit => '50dfdca'

still brings an error for watchOS target

[alex-taffe]

I filed FB14824841 with Apple on this one, Swift itself is crashing during compile

1.	Apple Swift version 6.0 (swiftlang-6.0.0.7.6 clang-1600.0.24.1)
2.	Compiling with effective version 5.10
3.	While evaluating request ExecuteSILPipelineRequest(Run pipelines { Mandatory Diagnostic Passes + Enabling Optimization Passes } on SIL for CodableCSV)
4.	While running pass #1627 SILModuleTransform "MandatorySILLinker".
5.	While deserializing SIL function "NSDecimalString"
6.	*** 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 'Foundation', builder version '6.0(5.10)/Apple Swift version 6.0 (swiftlang-6.0.0.7.6 clang-1600.0.24.1)', built from swiftinterface, resilient, loaded from '/Applications/Xcode-16.0.0-Beta.5.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator/prebuilt-modules/18.0/Foundation.swiftmodule/arm64-apple-ios-simulator.swiftmodule'
SILFunction type mismatch for 'NSDecimalString': '$@convention(c) (UnsafePointer<Decimal>, Optional<AnyObject>) -> @autoreleased Optional<NSString>' != '$@convention(c) (UnsafePointer<Decimal>, Optional<AnyObject>) -> @autoreleased NSString'


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           0x00000001064d9194 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 56
1  swift-frontend           0x00000001064d73e8 llvm::sys::RunSignalHandlers() + 112
2  swift-frontend           0x00000001064d9760 SignalHandler(int) + 292
3  libsystem_platform.dylib 0x000000019cf22584 _sigtramp + 56
4  libsystem_pthread.dylib  0x000000019cef1c20 pthread_kill + 288
5  libsystem_c.dylib        0x000000019cdfea30 abort + 180
6  swift-frontend           0x0000000101607658 swift::ModuleFileSharedCore::outputDiagnosticInfo(llvm::raw_ostream&) const + 0
7  swift-frontend           0x000000010159bab4 swift::ModuleFile::getSourceLoc() const + 0
8  swift-frontend           0x00000001015e3ce8 swift::SILDeserializer::readSILFunctionChecked(llvm::PointerEmbeddedInt<unsigned int, 31>, swift::SILFunction*, llvm::StringRef, bool, bool) + 1916
9  swift-frontend           0x00000001015f29d8 swift::SILDeserializer::lookupSILFunction(swift::SILFunction*, bool) + 452
10 swift-frontend           0x00000001016b4c24 swift::SILLinkerVisitor::maybeAddFunctionToWorklist(swift::SILFunction*, swift::SerializedKind_t) + 360
11 swift-frontend           0x00000001016b4e44 swift::SILLinkerVisitor::process() + 476
12 swift-frontend           0x000000010172fd0c swift::SILModule::linkFunction(swift::SILFunction*, swift::SILModule::LinkingMode) + 120
13 swift-frontend           0x0000000101deb8f0 (anonymous namespace)::SILLinker::run() + 64
14 swift-frontend           0x0000000101cc3a4c swift::SILPassManager::executePassPipelinePlan(swift::SILPassPipelinePlan const&) + 13436
15 swift-frontend           0x0000000101cfc9dc swift::SimpleRequest<swift::ExecuteSILPipelineRequest, std::__1::tuple<> (swift::SILPipelineExecutionDescriptor), (swift::RequestFlags)1>::evaluateRequest(swift::ExecuteSILPipelineRequest const&, swift::Evaluator&) + 56
16 swift-frontend           0x0000000101ce0340 swift::ExecuteSILPipelineRequest::OutputType swift::Evaluator::getResultUncached<swift::ExecuteSILPipelineRequest, swift::ExecuteSILPipelineRequest::OutputType swift::evaluateOrFatal<swift::ExecuteSILPipelineRequest>(swift::Evaluator&, swift::ExecuteSILPipelineRequest)::'lambda'()>(swift::ExecuteSILPipelineRequest const&, swift::ExecuteSILPipelineRequest::OutputType swift::evaluateOrFatal<swift::ExecuteSILPipelineRequest>(swift::Evaluator&, swift::ExecuteSILPipelineRequest)::'lambda'()) + 412
17 swift-frontend           0x0000000101ce2abc swift::runSILDiagnosticPasses(swift::SILModule&) + 612
18 swift-frontend           0x00000001012602cc swift::CompilerInstance::performSILProcessing(swift::SILModule*) + 84
19 swift-frontend           0x0000000100e8c268 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*) + 1376
20 swift-frontend           0x0000000100e8b474 swift::performCompileStepsPostSema(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 984
21 swift-frontend           0x0000000100e8e728 performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) + 1680
22 swift-frontend           0x0000000100e8d458 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3572
23 swift-frontend           0x0000000100e1450c swift::mainEntry(int, char const**) + 3680
24 dyld                     0x000000019cb67154 start + 2476

[GerdC]

For the record, same happens with Xcode 16.1 beta

[HendX]

This issue is now acknowledged in Xcode 16 beta 7 notes:

https://developer.apple.com/documentation/xcode-release-notes/xcode-16-release-notes

"your app may crash on launch on platforms earlier than the latest versions of the respective OS with errors indicating missing symbols in NSDecimal"

[mnorth719]

At the time of writing this comment, this is still an issue on the Xcode 16 RC.

@dehesa any updates here on a workaround? I don't feel confident that apple is going to address this on their end before the public release of iOS 18.

[GerdC]

Xcode 16 can be downloaded from the App Store.
CoodableCSV compiles and works for me with Xcode 16 from the App Store.