[main] Outer Loop: SDK build fails due to analyzer/compiler version mismatch

[ellahathaway]

The stage 1 leg of the source-build outer loop pipeline is failing to build the SDK repo because analyzer/source generator assemblies from microsoft.aspnetcore.app.ref/11.0.0-preview.2.26111.109 reference compiler version 5.5.0.0, but the running compiler is 5.4.0.0.

Error

error CS9057: Analyzer assembly '.../microsoft.aspnetcore.app.ref/11.0.0-preview.2.26111.109/.../Microsoft.AspNetCore.App.Analyzers.dll' cannot be used because it references version '5.5.0.0' of the compiler, which is newer than the currently running version '5.4.0.0'.
... Microsoft.AspNetCore.App.SourceGenerators.dll ... 5.5.0.0 vs 5.4.0.0 ...
... Microsoft.Extensions.Validation.ValidationsGenerator.dll ... 5.5.0.0 vs 5.4.0.0 ...

Link to failing build (internal Microsoft link)

[ellahathaway]

@mthalman - any chance this is related to dotnet/dotnet#4657?

[mthalman]

Yes. I'm reverting that: dotnet/dotnet#4821