[.NET 10] missing Mono and Emscripten manifests for downlevel .NET 9 targeting

[jonathanpeppers]

Description

Looking here:

• https://dev.azure.com/dnceng/public/_artifacts/feed/dotnet10

We are missing packs like:

• Microsoft.NET.Workload.Mono.ToolChain.net9.Manifest-10.0.100-alpha.1
• Microsoft.NET.Workload.Emscripten.net9.Manifest-10.0.100-alpha.1

Note that we have the Current, net6, net7, and net8 manifest packs here.

Missing net9 manifests prevents us from building net9.0-* projects with a .NET 10 SDK, at:

• [main] Update dependencies from dotnet/sdk android#9395

This is blocking us from getting a build of .NET MAUI on .NET 10.

Reproduction Steps

dotnet workload install android --source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet10/nuget/v3/index.json with a .NET 10 SDK.

Expected behavior

These manifest packs exist on the dotnet10 feed:

• Microsoft.NET.Workload.Mono.ToolChain.net9.Manifest-10.0.100-alpha.1
• Microsoft.NET.Workload.Emscripten.net9.Manifest-10.0.100-alpha.1

Actual behavior

These manifest packs do not exist on the dotnet10 feed:

• Microsoft.NET.Workload.Mono.ToolChain.net9.Manifest-10.0.100-alpha.1
• Microsoft.NET.Workload.Emscripten.net9.Manifest-10.0.100-alpha.1

Regression?

Yes, .NET 10 should support building net9.0-* projects.

Known Workarounds

None

Configuration

• .NET SDK 10.0.100-alpha.1.24573.1
• .NET runtime 10.0.0-alpha.1.24570.9

Other information

No response

[dotnet-policy-service]

Tagging subscribers to this area: @akoeplinger, @matouskozak
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[jonathanpeppers]

/cc @steveisok @lewing

[lewing]

yup, we're waiting for some sdk changes before adding it

[marcpopMSFT]

yup, we're waiting for some sdk changes before adding it

@lewing what changes are you still waiting on for this? I thought that all net10 changes I was tracking were in other than unwinding some test disablements.

[mattleibow]

I think the *.current manifests were not renamed to net9 and a new current created.

[akoeplinger]

This is fixed now. You'll probably need the latest nightly sdk build.

alexander:~$ sudo dotnet workload install android \
--source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet10/nuget/v3/index.json \
--source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-public/nuget/v3/index.json \
--source https://pkgs.dev.azure.com/dnceng/public/_packaging/darc-pub-dotnet-android-a8cd27e4/nuget/v3/index.json

Welcome to .NET 10.0!
---------------------
SDK Version: 10.0.100-alpha.1.24620.1

Telemetry
---------
The .NET tools collect usage data in order to help us improve your experience. It is collected by Microsoft and shared with the community. You can opt-out of telemetry by setting the DOTNET_CLI_TELEMETRY_OPTOUT environment variable to '1' or 'true' using your favorite shell.

Read more about .NET CLI Tools telemetry: https://aka.ms/dotnet-cli-telemetry

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Skipping NuGet package signature verification.
Skipping NuGet package signature verification.
Installing pack Microsoft.Android.Sdk.Darwin version 35.99.0-ci.main.78...
Writing workload pack installation record for Microsoft.Android.Sdk.Darwin version 35.99.0-ci.main.78...
Installing pack Microsoft.Android.Sdk.Darwin version 34.0.147...
Writing workload pack installation record for Microsoft.Android.Sdk.Darwin version 34.0.147...
Installing pack Microsoft.Android.Ref.35 version 35.99.0-ci.main.78...
Writing workload pack installation record for Microsoft.Android.Ref.35 version 35.99.0-ci.main.78...
Installing pack Microsoft.Android.Runtime.Mono.35.android-arm version 35.99.0-ci.main.78...
Writing workload pack installation record for Microsoft.Android.Runtime.Mono.35.android-arm version 35.99.0-ci.main.78...
Installing pack Microsoft.Android.Runtime.Mono.35.android-arm64 version 35.99.0-ci.main.78...
Writing workload pack installation record for Microsoft.Android.Runtime.Mono.35.android-arm64 version 35.99.0-ci.main.78...
Installing pack Microsoft.Android.Runtime.Mono.35.android-x86 version 35.99.0-ci.main.78...
Writing workload pack installation record for Microsoft.Android.Runtime.Mono.35.android-x86 version 35.99.0-ci.main.78...
Installing pack Microsoft.Android.Runtime.Mono.35.android-x64 version 35.99.0-ci.main.78...
Writing workload pack installation record for Microsoft.Android.Runtime.Mono.35.android-x64 version 35.99.0-ci.main.78...
Installing pack Microsoft.Android.Templates version 35.99.0-ci.main.78...

[... lots of output ... ]

Successfully installed workload(s) android.