Regression in .NET SDK 6.0.100: Can no longer publish WinForms/WPF app for win-arm64 (NETSDK1082)

#19991 strikes again, but for 6.0.100!

After upgrading from .NET SDK 5.0.401 to 6.0.100 we can no longer publish a net5.0 WPF app for win-arm64.

The dotnet publish command fails with:

error NETSDK1082: There was no runtime pack for Microsoft.WindowsDesktop.App.WPF available for the specified RuntimeIdentifier ‘win-arm64’

Repro

• With both 64-bit .NET SDK 5.0.401 and 6.0.100 installed on a Windows 10 x64 machine…
• Run dotnet new wpf
• Modify csproj to target net5.0-windows.
• Create a global.json file with this content

  {
    "sdk": {
      "version": "5.0.401",
      "rollForward": "patch",
      "allowPrerelease": false
    }
  }
  

• Run dotnet publish -r win-arm64. It succeeds.
• Now replace 5.0.401 in the global.json file with 6.0.100.
• Run dotnet publish -r win-arm64. It fails with:

> dotnet publish -r win-arm64
Microsoft (R) Build Engine version 17.0.0+c9eb9dd64 for .NET
Copyright (C) Microsoft Corporation. All rights reserved.

  Determining projects to restore...
  Restored C:\temp\wpfapp\wpfapp.csproj (in 95 ms).
C:\Program Files\dotnet\sdk\6.0.100\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.FrameworkReferenceResolution.targets(427,5): error NETSDK1082: There was no runtime pack for Microsoft.WindowsDesktop.App.WPF available for the specified RuntimeIdentifier 'win-arm64'. [C:\temp\wpfapp\wpfapp.csproj]

Repro solution

[marcpopMSFT]

Fix should release tomorrow.

[marcpopMSFT]

Do you mean this one: https://www.nuget.org/packages/Microsoft.WindowsDesktop.App.Runtime.win-arm64? I don’t believe we’ve had specific windows forms versions of the runtime packs, only the WindowsDesktop one that includes windows forms.