[net7-rc2] Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-x64 with version (= 6.0.10)

[jeromelaban]

Steps to Reproduce

I'm opening this issue in this repository because it seems related to the restore graph generation in net6.0-macos.

I'm also not sure about the repro steps, but here we go:

1. Install net7.0-rc2 with all workloads (including macos)
2. dotnet new install Uno.ProjectTemplates.Dotnet
3. dotnet new unoapp -o testapp
4. cd testapp\testapp.Mobile
5. dotnet build -f net6.0-android -c Release -p:RuntimeIdentifier=android-x64

(Android is on purpose here, because that's how the issue seems to happen, but it may not be the trigger)

Expected Behavior

Compilation succeeds.

Actual Behavior

/Users/runner/work/1/s/src/SamplesApp/SamplesApp.netcoremobile/SamplesApp.netcoremobile.csproj error NU1102: Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-x64 with version (= 6.0.10)
  - Found 5 version(s) in NuGet official package source [ Nearest version: 7.0.0-preview.5.22301.12 ]
  - Found 0 version(s) in Solution Packages
  - Found 0 version(s) in platform.uno dev [/Users/runner/work/1/s/src/SamplesApp/SamplesApp.netcoremobile/SamplesApp.netcoremobile.csproj]

Environment

dotnet --version
7.0.100-rc.2.22477.23
dotnet workload list

Installed Workload Id      Manifest Version                         Installation Source
---------------------------------------------------------------------------------------
macos                      12.3.1186-rc.2/7.0.100-rc.2              SDK 7.0.100-rc.2
ios                        16.0.1271-rc.2-xcode14/7.0.100-rc.2      VS 17.4.33015.44
maui-android               7.0.0-rc.2.6866/7.0.100-rc.2             VS 17.4.33015.44
maui-windows               7.0.0-rc.2.6866/7.0.100-rc.2             VS 17.4.33015.44
maui-maccatalyst           7.0.0-rc.2.6866/7.0.100-rc.2             VS 17.4.33015.44
android                    33.0.0-rc.2.202/7.0.100-rc.2             VS 17.4.33015.44
maccatalyst                15.4.1186-rc.2/7.0.100-rc.2              VS 17.4.33015.44
maui-ios                   7.0.0-rc.2.6866/7.0.100-rc.2             VS 17.4.33015.44

Build Logs

android-netcoremobile-sampleapp.zip

[rolfbjarne]

Did you get a binlog for this issue? Your binlog said "sampleapp" and that confused me 😄

[jeromelaban]

Heh ;) Yes it's Uno's sample app build logs.

As an update, if I remove net6.0-macos from the TargetFramework list, the nuget restore graph is generated properly.

[jeromelaban]

@dalexsoto If this issue is tagged future, does this mean it won't be fixed for .NET 7.0.100? If that's the case, this means we'll need to remove all the macos targets frameworks everywhere?

[rolfbjarne]

@jeromelaban I believe this issue will "fix" itself once the package it's complaining about is released.

That doesn't mean there's an issue here (it's certainly weird - and kind of amusing... - that it's complaining about a linux package when building for android, but only when macOS is among the target frameworks).

[rolfbjarne]

Minimal repro project:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFrameworks>net6.0-android;net6.0-macos</TargetFrameworks>
    <OutputType>Exe</OutputType>
  </PropertyGroup>
</Project>

Fails like this:

$ dotnet build -f net6.0-android -c Release -p:RuntimeIdentifier=android-x64
MSBuild version 17.4.0-preview-22465-02+02b334e3a for .NET
  Determining projects to restore...
/Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj : error NU1102: Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-x64 with version (= 6.0.10)
/Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj : error NU1102:   - Found 5 version(s) in nuget.org [ Nearest version: 7.0.0-preview.5.22301.12 ]
/Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj : error NU1102:   - Found 0 version(s) in /usr/local/share/dotnet/library-packs
  Failed to restore /Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj (in 109 ms).

Note that specifying the RuntimeIdentifier on the command line is required to reproduce.

In fact you get the same error if you try to build the net6.0-macos framework with the android RuntimeIdentifier:

$ dotnet build -f net6.0-macos -c Release -p:RuntimeIdentifier=android-x64
MSBuild version 17.4.0-preview-22465-02+02b334e3a for .NET
  Determining projects to restore...
/Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj : error NU1102: Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-x64 with version (= 6.0.10)
/Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj : error NU1102:   - Found 5 version(s) in nuget.org [ Nearest version: 7.0.0-preview.5.22301.12 ]
/Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj : error NU1102:   - Found 0 version(s) in /usr/local/share/dotnet/library-packs
  Failed to restore /Users/rolf/test/dotnet/issue-16401-a/testapp/testapp.Mobile/testapp.Mobile.csproj (in 109 ms).

Which makes me think this is a variation of dotnet/sdk#21877, where the RuntimeIdentifier specified on the command line is used for all target frameworks during the restore operation.

This also means there's a workaround: don't specify the RuntimeIdentifier on the command line, but in the project file instead:

<RuntimeIdentifier Condition="'$(TargetFramework)' == 'net6.0-android'">android-x64</RuntimeIdentifier>

[rolfbjarne]

Closing as duplicate of dotnet/sdk#21877.