`dotnet new android` attempts to restore Microsoft.AspNetCore.App.Runtime.linux-arm64

If you install .NET 6 RC1 and the Android workload, we are now using **FromWorkload** so a NuGet.config should no longer be needed when building Android projects.

Unfortunately, you get a different error now when testing this:

error NU1102: Unable to find package Microsoft.AspNetCore.App.Runtime.linux-arm64 with version (= 6.0.0-rc.1.21417.2)

Build log: msbuild.zip

I found I could workaround the problem with:

<Target Name="_RemoveLinuxFrameworkReferences"
    AfterTargets="ProcessFrameworkReferences">
  <ItemGroup>
    <_ProblematicRIDs Include="linux-arm;linux-arm64;linux-x86;linux-x64" />
    <PackageDownload Remove="Microsoft.AspNetCore.App.Runtime.%(_ProblematicRIDs.Identity)" />
    <PackageDownload Remove="Microsoft.NETCore.App.Host.%(_ProblematicRIDs.Identity)" />
  </ItemGroup>
</Target>

I will probably put this workaround in the Android workload for now.

This is probably related to the RID graph. I tried making an adjustment to the RID graph in the past, but they wouldn’t accept this change:

https://github.com/dotnet/runtime/pull/45927

[jonathanpeppers]

I think this is fixed, but I’ll try removing this target to be sure:

https://github.com/xamarin/xamarin-android/blob/5efda9d6923bb2478a2efb2e17104791a169ec1f/src/Xamarin.Android.Build.Tasks/Microsoft.Android.Sdk/targets/Microsoft.Android.Sdk.AssemblyResolution.targets#L17-L24

[marcpopMSFT]

@jonathanpeppers closing to be tracked by newer discussions we have going on. If this is still a separate issue, feel free to reactivate.