Stage 2 build failure in SBRP #3422
Description
The stage 2 let in internal CI is failing with the following error:
/vmr/src/source-build-reference-packages/artifacts/source-build/self/src/eng/Build.props(194,5): error MSB3030: Could not copy the file "/vmr/src/source-build-reference-packages/artifacts/source-build/self/src/artifacts/packages/Release/Shipping/Microsoft.DotNet.PlatformAbstractions.2.1.0.nupkg" because it was not found. [/vmr/prereqs/packages/restored/ArcadeBootstrapPackage/microsoft.dotnet.arcade.sdk/8.0.0-beta.23224.5/tools/Build.proj] [/vmr/prereqs/packages/restored/ArcadeBootstrapPackage/microsoft.dotnet.arcade.sdk/8.0.0-beta.23224.5/tools/Build.proj]
##[error]/vmr/src/source-build-reference-packages/artifacts/source-build/self/src/eng/Build.props(194,5): error MSB3030: Could not copy the file "/vmr/src/source-build-reference-packages/artifacts/source-build/self/src/artifacts/packages/Release/Shipping/Microsoft.DotNet.PlatformAbstractions.2.1.0.nupkg" because it was not found. [/vmr/prereqs/packages/restored/ArcadeBootstrapPackage/microsoft.dotnet.arcade.sdk/8.0.0-beta.23224.5/tools/Build.proj]
One possible cause of this that comes to my mind is the recent change to enable TFM filtering by default in arcade. This wouldn't have affected stage 1 because it uses arcade from previous source-built artifacts.