[area-Tools-ILLink]: Key Not Found: 'QuickGraph.Collections.FibonacciHeap`2/<GetEnumerator>d__8' #109821
Description
Description
I've moved my code from original Xamarin.iOS app to a new iOS .NET 8 application and it runs as expected if I choose "Don't link" in the iOS/Build/Linker behavior.
When this property is set to its default, "Link Framework SDKs Only", I get "1>Fatal error in IL Linker".
I use QuickGraph PCL version 3.6.61114.2 in my app and it seems as the linker has an issue with this during trimming.
--- Log Excerpt ---
1>--skip-unresolved true --notrimwarn --custom-data "LinkerOptionsFile=obj/Debug/net8.0-ios/ios-arm64/custom-linker-options.txt" --verbose -b --disable-opt unusedtypechecks --enable-serialization-discovery
1>C:\Program Files\dotnet\packs\Microsoft.iOS.Windows.Sdk.net8.0_18.0\18.0.8303\tools\msbuild\iOS\Xamarin.iOS.Common.After.targets(364,3): error IL1012: IL Trimmer has encountered an unexpected error. Please report the issue at https://aka.ms/report-illink
1>Fatal error in IL Linker
1>Unhandled exception. System.Collections.Generic.KeyNotFoundException: The given key 'QuickGraph.Collections.FibonacciHeap`2/<GetEnumerator>d__8' was not present in the dictionary.
1> at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
1> at Mono.Linker.Dataflow.CompilerGeneratedState.<GetCompilerGeneratedStateForType>g__MapGeneratedTypeTypeParameters|11_1(TypeDefinition generatedType, Dictionary`2 generatedTypeToTypeArgs, LinkContext context)
1> at Mono.Linker.Dataflow.CompilerGeneratedState.<GetCompilerGeneratedStateForType>g__MapGeneratedTypeTypeParameters|11_1(TypeDefinition generatedType, Dictionary`2 generatedTypeToTypeArgs, LinkContext context)
1> at Mono.Linker.Dataflow.CompilerGeneratedState.GetCompilerGeneratedStateForType(TypeDefinition type)
1> at Mono.Linker.Dataflow.CompilerGeneratedState.GetGeneratedTypeAttributes(TypeDefinition generatedType)
1> at ILLink.Shared.TrimAnalysis.FlowAnnotations.GetGeneratedTypeAttributes(TypeDefinition typeDef)
1> at ILLink.Shared.TrimAnalysis.FlowAnnotations.BuildTypeAnnotations(TypeDefinition type)
1> at ILLink.Shared.TrimAnalysis.FlowAnnotations.GetAnnotations(TypeDefinition type)
1> at ILLink.Shared.TrimAnalysis.FlowAnnotations.GetTypeAnnotation(TypeDefinition type)
1> at Mono.Linker.Dataflow.DynamicallyAccessedMembersTypeHierarchy.ProcessMarkedTypeForDynamicallyAccessedMembersHierarchy(TypeDefinition type)
1> at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
1> at Mono.Linker.Steps.MarkStep.MarkField(FieldDefinition field, DependencyInfo& reason, MessageOrigin& origin)
1> at Mono.Linker.Steps.MarkStep.MarkEntireType(TypeDefinition type, DependencyInfo& reason)
1> at Mono.Linker.Steps.MarkStep.MarkEntireType(TypeDefinition type, DependencyInfo& reason)
1> at Mono.Linker.Steps.MarkStep.MarkEntireAssembly(AssemblyDefinition assembly)
1> at Mono.Linker.Steps.MarkStep.MarkAssembly(AssemblyDefinition assembly, DependencyInfo reason)
1> at Mono.Linker.Steps.MarkStep.MarkModule(ModuleDefinition module, DependencyInfo reason)
1> at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
1> at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
1> at Mono.Linker.Steps.MarkStep.MarkGenericArguments(IGenericInstance instance)
1> at Mono.Linker.Steps.MarkStep.GetOriginalType(TypeReference type, DependencyInfo reason)
1> at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
1> at Mono.Linker.Steps.MarkStep.MarkType(TypeReference reference, DependencyInfo reason, Nullable`1 origin)
1> at Mono.Linker.Steps.MarkStep.MarkField(FieldDefinition field, DependencyInfo& reason, MessageOrigin& origin)
1> at Mono.Linker.Steps.MarkStep.MarkEntireType(TypeDefinition type, DependencyInfo& reason)
1> at Mono.Linker.Steps.MarkStep.MarkEntireAssembly(AssemblyDefinition assembly)
1> at Mono.Linker.Steps.MarkStep.MarkAssembly(AssemblyDefinition assembly, DependencyInfo reason)
1> at Mono.Linker.Steps.MarkStep.MarkModule(ModuleDefinition module, DependencyInfo reason)
1> at Mono.Linker.Steps.MarkStep.ProcessMarkedPending()
1> at Mono.Linker.Steps.MarkStep.Initialize()
1> at Mono.Linker.Steps.MarkStep.Process(LinkContext context)
1> at Mono.Linker.Pipeline.ProcessStep(LinkContext context, IStep step)
1> at Mono.Linker.Pipeline.Process(LinkContext context)
1> at Mono.Linker.Driver.Run(ILogger customLogger)
1> at Mono.Linker.Driver.Main(String[] args)
1>C:\Program Files\dotnet\packs\Microsoft.iOS.Windows.Sdk.net8.0_18.0\18.0.8303\tools\msbuild\iOS\Xamarin.iOS.Common.After.targets(406,3): error MSB3371: The file "obj\Debug\net8.0-ios\ios-arm64\linked\Link.semaphore" cannot be created. Could not find a part of the path 'C:\Users\Karl-Otto\Documents\src\KWENDA\MAUI\KWENDA-NET8\Kwenda.iOS\obj\Debug\net8.0-ios\ios-arm64\linked\Link.semaphore'.
Reproduction Steps
https://github.com/towebo/ILTrimmingError-iOS.git
Expected behavior
The app should build, link and deploy regardless of value set in property "iOS/Build/Linker behavior".
Actual behavior
When property "iOS/Build/Linker Behavior" is set to "Link Framework SDKs Only" the IL Trimmer encounters an unexpected error and the build fails.
Regression?
No response
Known Workarounds
Set the property "iOS/Build/Linker behavior" to "Don't link".
I don't know what side effects this might have aside from app size perhaps?
Configuration
Building iOS app with .NET 8.0.
Windows 10, x64, Version 22H2 (OS-version 19045.5131)
Microsoft Visual Studio Community 2022
Version 17.12.0 Preview 5.0
VisualStudio.17.Preview/17.12.0-pre.5.0+35424.110
Microsoft .NET Framework
Version 4.8.09037
Installed Version: Community
Visual C++ 2022 00482-90000-00000-AA057
Microsoft Visual C++ 2022
ASP.NET and Web Tools 17.12.174.40113
ASP.NET and Web Tools
Azure App Service Tools v3.0.0 17.12.174.40113
Azure App Service Tools v3.0.0
Azure Functions and Web Jobs Tools 17.12.174.40113
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C# Tools 4.12.0-3.24510.2+3fd39c8f6c8db918e3184050599c2046997160f1
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Common Azure Tools 1.10
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GitHub Copilot 17.12.27.11192
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Microsoft JVM Debugger 1.0
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Mono Debugging for Visual Studio 17.12.5 (918dbb1)
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NuGet Package Manager 6.12.0
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Razor (ASP.NET Core) 17.12.3.2451803+13fe97052e82683ec4c9fc916531eba5c751037f
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SQL Server Data Tools 17.12.78.0
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Test Adapter for Boost.Test 1.0
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TypeScript Tools 17.0.30918.2001
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Visual Basic Tools 4.12.0-3.24510.2+3fd39c8f6c8db918e3184050599c2046997160f1
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Visual F# Tools 17.12.0-beta.24501.1+19610c0b654766eec49d044cb97ca6eaa2a63d16
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Visual Studio IntelliCode 2.2
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VisualStudio.DeviceLog 1.0
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VisualStudio.Mac 1.0
Mac Extension for Visual Studio
VSPackage Extension 1.0
VSPackage Visual Studio Extension Detailed Info
Xamarin 17.12.0.152 (d17-12@c9ed1ee)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin Designer 17.12.3.17 (remotes/origin/main@0912a005b9)
Visual Studio extension to enable Xamarin Designer tools in Visual Studio.
Xamarin Templates 17.9.0 (38e87ba)
Templates for building iOS, Android, and Windows apps with Xamarin and Xamarin.Forms.
Xamarin.Android SDK 13.2.2.0 (d17-5/45b0e14)
Xamarin.Android Reference Assemblies and MSBuild support.
Mono: d9a6e87
Java.Interop: xamarin/java.interop/d17-5@149d70fe
SQLite: xamarin/sqlite@68c69d8
Xamarin.Android Tools: xamarin/xamarin-android-tools/d17-5@ca1552d
Xamarin.iOS and Xamarin.Mac SDK 16.4.0.23 (9defd91b3)
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