[NativeAOT] Project compiling failing with System.BadImageFormatException

[DjArt]

ILCompiler 7.0.0-preview.2.22152.2 produced this error:

Generating compatible native code. To optimize for size or speed, visit https://aka.ms/OptimizeCoreRT
"C:\Users\user\.nuget\packages\runtime.win-x64.microsoft.dotnet.ilcompiler\7.0.0-preview.2.22152.2\tools\\ilc" @"obj\Release\net6.0-windows10.0.17763\win-x64\native\myprog.ilc.rsp"
myprog.Program.<>c.<Main>b__0_0(HostBuilderContext,IServiceCollection): Using member 'Microsoft.Extensions.Configuration.ConfigurationBinder.Get<SettingsModel>(IConfiguration)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. In case the type is non-primitive, the trimmer cannot statically analyze the object's type so its members may be trimmed.
Format of the executable (.exe) or library (.dll) is invalid.
System.BadImageFormatException: Format of the executable (.exe) or library (.dll) is invalid.
   at System.Reflection.Metadata.Ecma335.CustomAttributeDecoder`1.DecodeFixedArgumentType(BlobReader& signatureReader, Boolean isElementType)
   at System.Reflection.Metadata.Ecma335.CustomAttributeDecoder`1.DecodeFixedArguments(BlobReader& signatureReader, BlobReader& valueReader, Int32 count)
   at System.Reflection.Metadata.Ecma335.CustomAttributeDecoder`1.DecodeValue(EntityHandle constructor, BlobHandle value)
   at ILCompiler.DependencyAnalysis.CustomAttributeBasedDependencyAlgorithm.AddDependenciesDueToCustomAttributes(DependencyList& dependencies, NodeFactory factory, EcmaModule module, CustomAttributeHandleCollection attributeHandles)
   at ILCompiler.DependencyAnalysis.CustomAttributeBasedDependencyAlgorithm.AddDependenciesDueToCustomAttributes(DependencyList& dependencies, NodeFactory factory, EcmaMethod method)
   at ILCompiler.DependencyAnalysis.MethodMetadataNode.GetStaticDependencies(NodeFactory factory)
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.GetStaticDependenciesImpl(DependencyNodeCore`1 node)
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.GetStaticDependencies(DependencyNodeCore`1 node)
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.ProcessMarkStack()
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.ComputeMarkedNodes()
   at ILCompiler.ILScanner.ILCompiler.IILScanner.Scan()
   at ILCompiler.Program.Run(String[] args)
   at ILCompiler.Program.Main(String[] args)

ILCompiler 6.0.0-rc.1.21420.1 produced this:

Generating compatible native code. To optimize for size or speed, visit https://aka.ms/OptimizeCoreRT
"C:\Users\user\.nuget\packages\runtime.win-x64.microsoft.dotnet.ilcompiler\6.0.0-rc.1.21420.1\tools\ilc" @"obj\Release\net6.0-windows10.0.17763\win-x64\native\myprog.ilc.rsp"
Assembly 'Microsoft.Extensions.DependencyInjection.Abstractions' produced AOT analysis warnings.
Format of the executable (.exe) or library (.dll) is invalid.
System.BadImageFormatException: Format of the executable (.exe) or library (.dll) is invalid.
   at System.Reflection.Metadata.Ecma335.CustomAttributeDecoder`1.DecodeFixedArgumentType(BlobReader& signatureReader, Boolean isElementType) in System.Reflection.Metadata.dll:token 0x60009a4+0x169
   at System.Reflection.Metadata.Ecma335.CustomAttributeDecoder`1.DecodeFixedArguments(BlobReader& signatureReader, BlobReader& valueReader, Int32 count) in System.Reflection.Metadata.dll:token 0x60009a2+0x14
   at System.Reflection.Metadata.Ecma335.CustomAttributeDecoder`1.DecodeValue(EntityHandle constructor, BlobHandle value) in System.Reflection.Metadata.dll:token 0x60009a1+0xb5
   at ILCompiler.DependencyAnalysis.CustomAttributeBasedDependencyAlgorithm.AddDependenciesDueToCustomAttributes(DependencyList& dependencies, NodeFactory factory, EcmaModule module, CustomAttributeHandleCollection attributeHandles) in ILCompiler.Compiler.dll:token 0x6000729+0x0
   at ILCompiler.DependencyAnalysis.CustomAttributeBasedDependencyAlgorithm.AddDependenciesDueToCustomAttributes(DependencyList& dependencies, NodeFactory factory, EcmaMethod method) in ILCompiler.Compiler.dll:token 0x6000725+0x140
   at ILCompiler.DependencyAnalysis.MethodMetadataNode.GetStaticDependencies(NodeFactory factory) in ILCompiler.Compiler.dll:token 0x6000773+0x0
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.GetStaticDependenciesImpl(DependencyNodeCore`1 node) in ILCompiler.DependencyAnalysisFramework.dll:token 0x6000038+0x0
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.GetStaticDependencies(DependencyNodeCore`1 node) in ILCompiler.DependencyAnalysisFramework.dll:token 0x6000039+0x8
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.ProcessMarkStack() in ILCompiler.DependencyAnalysisFramework.dll:token 0x600003a+0x2c
   at ILCompiler.DependencyAnalysisFramework.DependencyAnalyzer`2.ComputeMarkedNodes() in ILCompiler.DependencyAnalysisFramework.dll:token 0x600003b+0x19
   at ILCompiler.ILScanner.ILCompiler.IILScanner.Scan() in ILCompiler.Compiler.dll:token 0x60002ee+0x0
   at ILCompiler.Program.Run(String[] args) in ilc.dll:token 0x600010f+0xb3e
   at ILCompiler.Program.Main(String[] args) in ilc.dll:token 0x6000115+0x5

[MichalStrehovsky]

Do you have a method with a generic attribute on it? They don't work with NativeAOT.

This sounds like dotnet/runtime#58073.

[MichalStrehovsky]

Going to assume it's a generic attribute. System.Reflection.Metadata thinks the custom attribute blob is corrupt.