Daily build: Unable to find package Microsoft.NETCore.App.Ref with version (= 6.0.34)

[prochan2]

Describe the bug

I use daily build of .NET 8 SDK. Building a project targeting .NET 6 fails on

error NU1102: Unable to find package Microsoft.NETCore.App.Ref with version (= 6.0.34)

Is there a NuGet feed that provides this version?

To Reproduce

.\dotnet-install.ps1 -SkipNonVersionedFiles -Runtime dotnet -Channel LTS
.\dotnet-install.ps1 -SkipNonVersionedFiles -Channel 8.0.3xx -Quality daily

Now make a new console project, change the target framework to net6.0 and build the project using dotnet build.

Exceptions (if any)

PS C:\Users\Tony\Downloads\MyProject> dotnet build
  Determining projects to restore...
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102: Unable to find package Microsoft.NETCore.App.Ref with version (= 6.0.34)
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102:   - Found 120 version(s) in nuget.org [ Nearest version: 7.0.0-preview.1.22076.8 ]
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102: Unable to find package Microsoft.WindowsDesktop.App.Ref with version (= 6.0.34)
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102:   - Found 116 version(s) in nuget.org [ Nearest version: 7.0.0-preview.1.22077.5 ]
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102: Unable to find package Microsoft.AspNetCore.App.Ref with version (= 6.0.34)
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102:   - Found 121 version(s) in nuget.org [ Nearest version: 7.0.0-preview.1.22109.13 ]
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102: Unable to find package Microsoft.NETCore.App.Host.win-x64 with version (= 6.0.34)
C:\Users\Tony\Downloads\MyProject\MyProject.csproj : error NU1102:   - Found 169 version(s) in nuget.org [ Nearest version: 7.0.0-preview.1.22076.8 ]
  Failed to restore C:\Users\Tony\Downloads\MyProject\MyProject.csproj (in 1.51 sec).

Further technical details

PS C:\Users\Tony\Downloads\MyProject> dotnet --info
.NET SDK:
 Version:           8.0.305
 Commit:            c9820f9da2
 Workload version:  8.0.300-manifests.c915c39d
 MSBuild version:   17.10.4+10fbfbf2e

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22631
 OS Platform: Windows
 RID:         win-x64
 Base Path:   C:\Users\Tony\AppData\Local\Microsoft\dotnet\sdk\8.0.305\

.NET workloads installed:
There are no installed workloads to display.

Host:
  Version:      8.0.7
  Architecture: x64
  Commit:       2aade6beb0

.NET SDKs installed:
  6.0.426 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\sdk]
  8.0.305 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.32 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 8.0.7 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 6.0.32 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 8.0.7 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 6.0.32 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 8.0.7 [C:\Users\Tony\AppData\Local\Microsoft\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
  None

Environment variables:
  Not set

global.json file:
  C:\Users\Tony\Downloads\MyProject\global.json

Learn more:
  https://aka.ms/dotnet/info

Download .NET:
  https://aka.ms/dotnet/download

I use CLI for this repro on a clean Windows 11 machine.

[prochan2]

(Originally posted at dotnet/source-build#4546.)

[marcpopMSFT]

This is not supported and part of the reason we remove the daily build for servicing branches once they enter servicing. @v-wuzhai we should remove 8.0.4xx from the build table.

If you want to do this, you have to override the various properties related to this:

  <PropertyGroup>
    <RuntimeFrameworkVersion>6.0.33</RuntimeFrameworkVersion>
  </PropertyGroup>

  <ItemGroup>
    <KnownFrameworkReference  Update="@(KnownFrameworkReference)">
      <TargetingPackVersion Condition="'%(TargetFramework)' == 'net6.0'">6.0.33</TargetingPackVersion >
    </KnownFrameworkReference >
  </ItemGroup>

There is an issue filed to make it easier to do this with just the one property but it's not prioritized at the moment: #42196

[prochan2]

For Directory.Build.props, I had to use the following:

<Project>
  <Target Name="_SetRuntimeVersion" BeforeTargets="ProcessFrameworkReferences">
    <ItemGroup>
      <KnownFrameworkReference Update="@(KnownFrameworkReference)">
        <LatestRuntimeFrameworkVersion Condition="'%(TargetFramework)' == 'net6.0'">6.0.33</LatestRuntimeFrameworkVersion>
        <TargetingPackVersion Condition="'%(TargetFramework)' == 'net6.0'">6.0.33</TargetingPackVersion >
      </KnownFrameworkReference>
      <KnownAppHostPack Update="@(KnownAppHostPack)">
        <AppHostPackVersion Condition="'%(TargetFramework)' == 'net6.0'">6.0.33</AppHostPackVersion>
      </KnownAppHostPack>
    </ItemGroup>
  </Target>
</Project>