[net8-pre5] Build app for android-arm fails with error NU1101: Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-arm

[tranb3r]

Android application type

.NET Android (net7.0-android, etc.)

Affected platform version

net8-pre5

Description

Building my app for android-arm, it fails with the following error:

error NU1101: Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-arm. No packages exist with this id in source(s): C:\Program Files\dotnet\library-packs, Local, Microsoft Visual Studio Offline Packages, nuget.org

Steps to Reproduce

Check the attached binlog
msbuild.zip

Did you find any workaround?

No response

Relevant log output

No response

[tranb3r]

Workaround: add this to csproj:

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

[jonathanpeppers]

This is very similar to an old problem: #7043

I thought something like this might cause it, but it seems to work fine:

dotnet new android
dotnet add package SQLitePCLRaw.bundle_green --version 2.1.5
dotnet build

If you look at the .binlog above it has:

Normally Android apps don't include this package.

@steveisok @dsplaisted was there something we did in dotnet/runtime solve this before?

I heard we may have introduced linux-bionic-* RIDs for experimenting with NativeAOT on Android. Maybe we need the same fix for those?

[steveisok]

We've had mono based linux-bionic packs around for quite a long time, so it's a bit confusing why nativeaot ones would introduce problems. @akoeplinger do you know of anything in the sdk that might be getting skipped b/c it's not mono and as a result would cause this?

[akoeplinger]

.NET8 preview 5 was before the linux-bionic NativeAOT changes so that shouldn't be related.

[akoeplinger]

@tranb3r did this work with an earlier .NET 8 preview, or just .NET 7?

[tranb3r]

I've just tested with .NET 7: it does not work either.

[jonathanpeppers]

@tranb3r is there a specific NuGet package in your app that triggers this problem? Project templates obviously work fine.

The ones I see are:

<PackageReference Include="ConfigureAwait.Fody" Version="3.3.2" PrivateAssets="All" />
<PackageReference Include="Fody" Version="6.8.0">
	<PrivateAssets>all</PrivateAssets>
	<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.Maui.Controls" Version="8.0.0-preview.5.8529" />
<PackageReference Include="Plugin.Maui.ScreenSecurity" Version="1.0.0" />
<PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
<PackageReference Include="Serilog.Sinks.Xamarin" Version="1.0.0" />
<PackageReference Include="Xamarin.Build.Download" Version="0.11.4" />
<PackageReference Include="Xamarin.AndroidX.Work.Runtime" Version="2.8.1.2" />

But there could be other packages from project references.

[akoeplinger]

I think I know what's going on: the project OuiBank.Core is getting restored with the RuntimeIdentifier=android-arm, but it is targeting net8.0 so the Android SDK is not getting involved, which means we're not setting UseMonoRuntime=true and that in turn means we're getting the normal Microsoft.NETCoreApp.Runtime.**RID** instead of Microsoft.NETCoreApp.Runtime.Mono.**RID** and the former doesn't have a linux-bionic-arm package on nuget.org.

[akoeplinger]

Here's a simple repro:

$ dotnet new classlib -o myLib
$ cd myLib
$ dotnet restore -r android-arm
  Determining projects to restore...
/Users/alexander/dev/test/8170/myLib/myLib.csproj : error NU1101: Unable to find package Microsoft.NETCore.App.Runtime.linux-bionic-arm. No packages exist with this id in source(s): /usr/local/share/dotnet/library-packs, nuget.org
  Failed to restore /Users/alexander/dev/test/8170/myLib/myLib.csproj (in 514 ms).

The reason why it's using linux-bionic-arm is because the RID graph specifies it as a parent of android-arm. Not sure if the RID flowing to the library project in the original issue project is expected, @dsplaisted ?

[dsplaisted]

Not sure if the RID flowing to the library project in the original issue project is expected, @dsplaisted ?

I would not expect the RID to flow to the library. Normally the MSBuild project reference protocol is used to (among other things) determine whether a referenced project is "RID agnostic" or not. The default logic is that if a project is not an Exe project and doesn't define RuntimeIdentifier or RuntimeIdentifiers properties, then a global RuntimeIdentifier property won't flow to it.

The project reference protocol doesn't seem to have been used in this binlog. I think maybe it never applied to NuGet's project reference walk, but that didn't cause any issues until now.

[tranb3r]

Any update?

[tranb3r]

Is this going to be fixed?

[amirvenus]

is android not supported on dotnet 8.0 arm Ubuntu?

dotnet workload search

Workload ID Description

aspire .NET Aspire SDK (Preview)
macos .NET SDK Workload for building macOS applications.
maui-tizen .NET MAUI SDK for Tizen
maui-windows .NET MAUI SDK for Windows
wasi-experimental workloads/wasi-experimental/description
wasm-experimental workloads/wasm-experimental/description
wasm-tools .NET WebAssembly build tools

dotnet workload install android
Workload ID android isn't supported on this platform.