Remove Microsoft.Extensions.DependencyModel 6.0.0 pre-build dependency

[oleksandr-didyk]

Required by #81468

As stated in the discussion for the above-mentioned issue #81468 (comment):

We build that library ourselves in the repository so we should remove the prebuilt package dependency entirely

The package in question is marked as pre-built in source-build. Furthermore, the package cannot be SBRPed as it is loaded during the build:

Microsoft.NETCore.App.Runtime.Composite -> 
  microsoft.dotnet.sharedframework.sdk/8.0.0-beta.23213.1/targets/sharedfx.targets(189,5): error MSB4018: The "GenerateSharedFrameworkDepsFile" task failed unexpectedly. [/src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.Composite.sfxproj]
  microsoft.dotnet.sharedframework.sdk/8.0.0-beta.23213.1/targets/sharedfx.targets(189,5): error MSB4018: System.BadImageFormatException: Could not load file or assembly 'Microsoft.Extensions.DependencyModel, Version=6.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. Reference assemblies cannot be loaded for execution. (0x80131058) [src/installer/pkg/sfx/Microsoft.NETCore.App/Microsoft.NETCore.App.Runtime.Composite.sfxproj]

CC: @ViktorHofer

[oleksandr-didyk]

Additionally, currently runtime cannot be build with the latest SBRP, since the latter now contains a ref pack for Microsoft.Extensions.DependencyModel 6.0.0 which was added to deal with pre-builts in Arcade -> dotnet/source-build-reference-packages#604

Would be great if someone could take a look at this since its blocking opening PR for #81468. Thanks!

[ViktorHofer]

Microsoft.Extensions.DependencyModel 6.0.0 which was added to deal with pre-builts in Arcade -> dotnet/source-build-reference-packages#604

Makes sense as Arcade must build before runtime. Does that mean that except for the sourcelink dependency, every other dependency in Arcade is considered a prebuild?

Would be great if someone could take a look at this since its blocking opening PR for #81468. Thanks!

I tried to avoid that self referencing dependency multiple times in the past but failed. Just mentioning to adjust expectations. Will take a look again. cc @ericstj @MichaelSimons

[oleksandr-didyk]

Does that mean that except for sourcelink, everything in Arcade is considered a prebuild?

I think @MichaelSimons can answer this question better than me

Will take a look again.

Appreciate the help, thank you

[MichaelSimons]

Makes sense as Arcade must build before runtime. Does that mean that except for the sourcelink dependency, every other dependency in Arcade is considered a prebuild?

No, this is where previous source-built artifacts comes in. A repo is free to take a dependency on these. This is required to break the circular dependencies that the product has.

[MichaelSimons]

I'm not following what exactly is happening here but if Microsoft.Extensions.DependencyModel,6.0.0 is being loaded indirectly as a result of using the source-built version of arcade, then this problem resides in arcade as a result of it utilizing an SBRP. This reference would need to be updated to the live (n-1) version.

[mthalman]

I've run into this error myself when attempting to implement pre-repo-PVP for arcade. When doing that, it causes the SBRP version of Microsoft.Extensions.DependencyModel to be included in one of the NuGet packages output by arcade. This is then consumed later on in the build of runtime which attempts to use the arcade package. By adding Microsoft.Extensions.DependencyModel.6.0.0 to the Version.Details of arcade, it should resolve this to avoid taking it from SBRP.