[Bug]: Build fails for primary contructor, but not classic constructor

[0qln]

Issue Description

I have the class EventAccessor<T> like following:

/// <summary>
/// Expose the `OnChanged` event of a property.
/// </summary>
/// <typeparam name="T"></typeparam>
internal class EventAccessor<T> : IImmutable
{
    /// <summary>
    /// This event will be invoked whenever the value of the property of this accessor changes.
    /// </summary>
    public event EventHandler? OnChanged
    {
        add
        {
            _property.OnChanged += value;
        }
        remove
        {
            _property.OnChanged -= value;
        }
    }

    protected readonly Immutable<T> _property;
}

Adding the primary constructor

internal class EventAccessor<T>(Immutable<T> value) : IImmutable
{
    /// <summary>
    /// This event will be invoked whenever the value of the property of this accessor changes.
    /// </summary>
    public event EventHandler? OnChanged
    {
        add
        {
            _property.OnChanged += value;
        }
        remove
        {
            _property.OnChanged -= value;
        }
    }

    protected readonly Immutable<T> _property = value;
}

and trying to run the project yields the error:

Error	MSB6006	"csc.exe" exited with code -2146232797.	compiler-bug	C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\Roslyn\Microsoft.CSharp.Core.targets	84

I am not sure where to report this bug, as it seems to be related to the new C# version, but the error is a MSB error, so I suppose I'm gonna start here.
Also: This bug is, atleast for me, not urgent; one can simple fallback to using the classic constructor (Although it was very annoying to track down the source of the error)

Steps to Reproduce

I have stripped my original project down to the minimal stuff needed for the error to occur:

1. Create a new .NET 8 Console Application.
2. Create the files with contents as in the example repository https://github.com/0qln/compiler-bug
3. Try to run the application

Expected Behavior

Successful build

Actual Behavior

Throws the error:
Error MSB6006 "csc.exe" exited with code -2146232797. Application C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\Roslyn\Microsoft.CSharp.Core.targets 84

Analysis

I have no experience in debugging this close to the source, but if it helps, here is the code snipped that visual studio tells me is throwing the error:

    <!-- Condition is to filter out the _CoreCompileResourceInputs so that it doesn't pass in culture resources to the compiler -->
    <Csc Condition="'%(_CoreCompileResourceInputs.WithCulture)' != 'true'"
         AdditionalLibPaths="$(AdditionalLibPaths)"
         AddModules="@(AddModules)"
         AdditionalFiles="@(AdditionalFiles)"
         AllowUnsafeBlocks="$(AllowUnsafeBlocks)"
         AnalyzerConfigFiles="@(EditorConfigFiles)"
         Analyzers="@(Analyzer)"
         ApplicationConfiguration="$(AppConfigForCompiler)"
         BaseAddress="$(BaseAddress)"
         CheckForOverflowUnderflow="$(CheckForOverflowUnderflow)"
         ChecksumAlgorithm="$(ChecksumAlgorithm)"
         CodeAnalysisRuleSet="$(ResolvedCodeAnalysisRuleSet)"
         CodePage="$(CodePage)"
         DebugType="$(DebugType)"
         DefineConstants="$(DefineConstants)"
         DelaySign="$(DelaySign)"
         DisabledWarnings="$(NoWarn)"
         DisableSdkPath="$(DisableSdkPath)"
         DocumentationFile="@(DocFileItem)"
         EmbedAllSources="$(EmbedAllSources)"
         EmbeddedFiles="@(EmbeddedFiles)"
         EmitDebugInformation="$(DebugSymbols)"
         EnvironmentVariables="$(CscEnvironment)"
         ErrorEndLocation="$(ErrorEndLocation)"
         ErrorLog="$(ErrorLog)"
         ErrorReport="$(ErrorReport)"
         Features="$(Features)"
         InterceptorsPreviewNamespaces="$(InterceptorsPreviewNamespaces)"
         FileAlignment="$(FileAlignment)"
         GeneratedFilesOutputPath="$(CompilerGeneratedFilesOutputPath)"
         GenerateFullPaths="$(GenerateFullPaths)"
         HighEntropyVA="$(HighEntropyVA)"
         Instrument="$(Instrument)"
         KeyContainer="$(KeyContainerName)"
         KeyFile="$(KeyOriginatorFile)"
         LangVersion="$(LangVersion)"
         LinkResources="@(LinkResource)"
         MainEntryPoint="$(StartupObject)"
         ModuleAssemblyName="$(ModuleAssemblyName)"
         NoConfig="true"
         NoLogo="$(NoLogo)"
         NoStandardLib="$(NoCompilerStandardLib)"
         NoWin32Manifest="$(NoWin32Manifest)"
         Nullable="$(Nullable)"
         Optimize="$(Optimize)"
         Deterministic="$(Deterministic)"
         PublicSign="$(PublicSign)"
         OutputAssembly="@(IntermediateAssembly)"
         OutputRefAssembly="@(IntermediateRefAssembly)"
         PdbFile="$(PdbFile)"
         Platform="$(PlatformTarget)"
         Prefer32Bit="$(Prefer32Bit)"
         PreferredUILang="$(PreferredUILang)"
         ProvideCommandLineArgs="$(ProvideCommandLineArgs)"
         References="@(ReferencePathWithRefAssemblies)"
         RefOnly="$(ProduceOnlyReferenceAssembly)"
         ReportAnalyzer="$(ReportAnalyzer)"
         ReportIVTs="$(ReportIVTs)"
         Resources="@(_CoreCompileResourceInputs);@(CompiledLicenseFile)"
         ResponseFiles="$(CompilerResponseFile)"
         RuntimeMetadataVersion="$(RuntimeMetadataVersion)"
         SharedCompilationId="$(SharedCompilationId)"
         SkipAnalyzers="$(_SkipAnalyzers)"
         SkipCompilerExecution="$(SkipCompilerExecution)"
         Sources="@(Compile)"
         SubsystemVersion="$(SubsystemVersion)"
         TargetType="$(OutputType)"
         ToolExe="$(CscToolExe)"
         ToolPath="$(CscToolPath)"
         TreatWarningsAsErrors="$(TreatWarningsAsErrors)"
         UseHostCompilerIfAvailable="$(UseHostCompilerIfAvailable)"
         UseSharedCompilation="$(UseSharedCompilation)"
         Utf8Output="$(Utf8Output)"
         VsSessionGuid="$(VsSessionGuid)"
         WarningLevel="$(WarningLevel)"
         WarningsAsErrors="$(WarningsAsErrors)"
         WarningsNotAsErrors="$(WarningsNotAsErrors)"
         Win32Icon="$(ApplicationIcon)"
         Win32Manifest="$(Win32Manifest)"
         Win32Resource="$(Win32Resource)"
         PathMap="$(PathMap)"
         SourceLink="$(SourceLink)">
      <Output TaskParameter="CommandLineArgs" ItemName="CscCommandLineArgs" />
    </Csc>

in the file C:\Program Files\Microsoft Visual Studio\2022\Community\Msbuild\Current\Bin\Roslyn\Microsoft.CSharp.Core.targets

Versions & Configurations

msbuild -version output:

MSBuild version 17.9.8+b34f75857 for .NET Framework
17.9.8.16306

[Kalle Olavi Niemitalo]

I think it's a duplicate of dotnet/roslyn#71400

[0qln]

Yep, looks like it. Should we close this issue then?

[Rainer Sigwald]

Duplicate of dotnet/roslyn#71400