Attempt to load System.Runtime reference assembly for execution causes test failure

[runfoapp]

The error message when failing is the following:

System.BadImageFormatException : Could not load file or assembly 'System.Runtime, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. Reference assemblies should not be loaded for execution. They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058) ---- System.BadImageFormatException : Cannot load a reference assembly for execution.

Based on that I'd say it appears we are attempting to load a reference assembly here vs. the implementation assembly.

Runfo Tracking Issue: ReferenceDirective_FileWithDependencies flaky failure loading System.Runtime

Build	Definition	Kind	Run Name

Build Result Summary

Day Hit Count	Week Hit Count	Month Hit Count
0	0	0

[jaredpar]

@tmat FYI

[sharwell]

@tmat @jaredpar I'm not sure where this exception is occurring, but it may be beneficial to change it to AssertOrFailFast so we can look at dumps to figure out what happened.

[jaredpar]

Agree this is a really good candidate for AssertOrFailFast

[tmat]

Is there anything actionable at this point? I don't see any indicator of where this issue occurs.

[tmat]

Never mind, found a build that still exists:

System.TypeLoadException : No se puede cargar el tipo 'System.Threading.Tasks.Task`1' del ensamblado'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'.


Stack trace
   en System.Signature.GetSignature(Void* pCorSig, Int32 cCorSig, RuntimeFieldHandleInternal fieldHandle, IRuntimeMethodInfo methodHandle, RuntimeType declaringType)
   en System.Reflection.RuntimeMethodInfo.get_ReturnType()
   en System.Reflection.RuntimeMethodInfo.get_InvocationFlags()
   en System.Delegate.CreateDelegateInternal(RuntimeType rtType, RuntimeMethodInfo rtMethod, Object firstArgument, DelegateBindingFlags flags, StackCrawlMark& stackMark)
   en System.Reflection.RuntimeMethodInfo.CreateDelegateInternal(Type delegateType, Object firstArgument, DelegateBindingFlags bindingFlags, StackCrawlMark& stackMark)
   en System.Reflection.RuntimeMethodInfo.CreateDelegate(Type delegateType)
   en Roslyn.Utilities.ReflectionUtilities.CreateDelegate[T](MethodInfo methodInfo) en /_/src/Compilers/Core/Portable/InternalUtilities/ReflectionUtilities.cs:línea 115
   en Microsoft.CodeAnalysis.Scripting.ScriptBuilder.Build[T](Compilation compilation, DiagnosticBag diagnostics, Boolean emitDebugInformation, CancellationToken cancellationToken) en /_/src/Scripting/Core/ScriptBuilder.cs:línea 163
   en Microsoft.CodeAnalysis.Scripting.ScriptBuilder.CreateExecutor[T](ScriptCompiler compiler, Compilation compilation, Boolean emitDebugInformation, CancellationToken cancellationToken) en /_/src/Scripting/Core/ScriptBuilder.cs:línea 88
   en Microsoft.CodeAnalysis.Scripting.Script`1.GetExecutor(CancellationToken cancellationToken) en /_/src/Scripting/Core/Script.cs:línea 365
   en Microsoft.CodeAnalysis.Scripting.Script`1.RunAsync(Object globals, Func`2 catchException, CancellationToken cancellationToken) en /_/src/Scripting/Core/Script.cs:línea 465
   en Microsoft.CodeAnalysis.CSharp.Scripting.UnitTests.InteractiveSessionTests.ReferenceDirective_FileWithDependencies() en /_/src/Scripting/CSharpTest/InteractiveSessionTests.cs:línea 1203