[ILink][browser][debug] Microsoft.CodeAnalysis.Operations.DynamicMemberReferenceOperation

[pavelsavara]

Error Blob

{
  "ErrorMessage": "Microsoft.CodeAnalysis.Operations.DynamicMemberReferenceOperation",
  "BuildRetry": false,
  "ExcludeConsoleLog": true
}

Reproduction Steps

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=451726&view=logs&j=25ff4a1f-a33e-587c-1adf-e8bafe0c741d&t=652ede7b-14bb-5de9-c266-e48d99622f63

wasm/browser target with Debug configuration
.\build.cmd -bl -os browser -subset mono+libs -c Debug

Process terminated. Assertion failed. [C:\Dev\runtime\src\mono\wasm\host\WasmAppHost.csproj]
Microsoft.CodeAnalysis.Operations.DynamicMemberReferenceOperation: C:\Dev\runtime\src\mono\wasm\host\DevServer\WebAssemblyNetDebugProxyAppBuilderExtensions.cs: (200,12)-(200,32) [C:\Dev\runtime\src\mono\wasm\host\WasmAppHost.csproj]
  at ILLink.RoslynAnalyzer.DataFlow.LocalDataFlowVisitor`2.ProcessSingleTargetAssignment(IOperation targetOperation, IAssignmentOperation operation, LocalDataFlowState`2 state, Boolean merge) in C:\Dev\runtime\src\tools\illink\src\ILLink.RoslynAnalyzer\DataFlow\LocalDataFlowVisitor.cs:line 302
  at ILLink.RoslynAnalyzer.DataFlow.LocalDataFlowVisitor`2.ProcessAssignment(IAssignmentOperation operation, LocalDataFlowState`2 state) in C:\Dev\runtime\src\tools\illink\src\ILLink.RoslynAnalyzer\DataFlow\LocalDataFlowVisitor.cs:line 326

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=451726
Error message validated: Microsoft.CodeAnalysis.Operations.DynamicMemberReferenceOperation
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 10/26/2023 10:41:20 AM UTC

Report

Build	Definition	Step Name	Console log	Pull Request
451726	dotnet/runtime	Build product	Log	#94013

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
1	1	1

Tagging subscribers to this area: @agocke, @sbomer, @vitek-karas
See info in area-owners.md if you want to be subscribed.

Issue Details

---

Error Blob

{
  "ErrorMessage": "Microsoft.CodeAnalysis.Operations.DynamicMemberReferenceOperation",
  "BuildRetry": false,
  "ExcludeConsoleLog": true
}

Reproduction Steps

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=451726&view=logs&j=25ff4a1f-a33e-587c-1adf-e8bafe0c741d&t=652ede7b-14bb-5de9-c266-e48d99622f63

wasm/browser target with Debug configuration
.\build.cmd -bl -os browser -subset mono+libs -c Debug

Process terminated. Assertion failed. [C:\Dev\runtime\src\mono\wasm\host\WasmAppHost.csproj]
Microsoft.CodeAnalysis.Operations.DynamicMemberReferenceOperation: C:\Dev\runtime\src\mono\wasm\host\DevServer\WebAssemblyNetDebugProxyAppBuilderExtensions.cs: (200,12)-(200,32) [C:\Dev\runtime\src\mono\wasm\host\WasmAppHost.csproj]
  at ILLink.RoslynAnalyzer.DataFlow.LocalDataFlowVisitor`2.ProcessSingleTargetAssignment(IOperation targetOperation, IAssignmentOperation operation, LocalDataFlowState`2 state, Boolean merge) in C:\Dev\runtime\src\tools\illink\src\ILLink.RoslynAnalyzer\DataFlow\LocalDataFlowVisitor.cs:line 302
  at ILLink.RoslynAnalyzer.DataFlow.LocalDataFlowVisitor`2.ProcessAssignment(IAssignmentOperation operation, LocalDataFlowState`2 state) in C:\Dev\runtime\src\tools\illink\src\ILLink.RoslynAnalyzer\DataFlow\LocalDataFlowVisitor.cs:line 326

Author:	pavelsavara
Assignees:	vitek-karas
Labels:	blocking-clean-ci, Known Build Error, area-Tools-ILLink
Milestone:	9.0.0

[JakeYallop]

I'm running into this when trying to build the repo locally. Is there a temporary workaround for this I can use?

./build.cmd -os browser -subset mono+libs

Its a fresh clone (the only extra step I did was to sync main from dotnet/runtime).

[sbomer]

@JakeYallop, can you try building with /p:ToolsConfiguration=Release?

[JakeYallop]

That did not work unfortunately, same error as before.

[sbomer]

Sigh... looks like ToolsConfiguration wasn't working due to the following typo: #94060.
If I fix that typo locally I can build with /p:ToolsConfiguration=Release (or at least get past the initial error - I'm still waiting for the build to finish).