Update ManagedWinRTComponentCanBeReferenced test to Windows SDK 10.0.26100.0 by Copilot · Pull Request #52134 · dotnet/sdk

Copilot · 2025-12-11T15:56:01Z

The ManagedWinRTComponentCanBeReferenced test was failing in CI due to missing Platform.xml for Windows SDK 10.0.19041.0.

Changes

Updated TargetFrameworks from windows10.0.19041.0 to windows10.0.26100.0
Updated CsWinRTWindowsMetadata property to match the new SDK version
Removed explicit WindowsSdkPackageVersion property (no longer needed)

The newer SDK version should be available on CI infrastructure, allowing the test to pass.

Original prompt

This section details on the original issue you should resolve

<issue_title>Skipped test: Microsoft.NET.Build.Tests.GivenThatWeWantToBuildAWindowsRuntimeComponent.ManagedWinRTComponentCanBeReferenced</issue_title>
<issue_description>Related: #51935
Related: #51934

Summary

This test was failing in the release/10.0.1xx and main branch for:

FullFramework: windows (x64)
TestBuild: windows (x64)

Error Log

[xUnit.net 00:00:16.42]     Microsoft.NET.Build.Tests.GivenThatWeWantToBuildAWindowsRuntimeComponent.ManagedWinRTComponentCanBeReferenced [FAIL]
[xUnit.net 00:00:16.42]       Expected value to be 0 because Expected command to pass but it did not.
[xUnit.net 00:00:16.42]       Working Directory:
[xUnit.net 00:00:16.42]       File Name: C:\h\w\A5D1090F\p\d\dotnet.exe
[xUnit.net 00:00:16.42]       Arguments: msbuild /t:Build C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ConsoleApp\ConsoleApp.csproj /restore
[xUnit.net 00:00:16.42]       Exit Code: 1
[xUnit.net 00:00:16.42]       StdOut:
[xUnit.net 00:00:16.42]       MSBuild version 18.0.6+5ddd0ddc0 for .NET
[xUnit.net 00:00:16.42]         Determining projects to restore...
[xUnit.net 00:00:16.42]         Restored C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ConsoleApp\ConsoleApp.csproj (in 3.71 sec).
Running C:\h\w\A5D1090F\p\d\dotnet.exe msbuild /t:Build C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\It_fails_when---0E5A998A\WinMDClasslibrary\WinMDClasslibrary.csproj /restore
[xUnit.net 00:00:16.42]         Restored C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ManagedWinRTComponent\ManagedWinRTComponent.csproj (in 3.71 sec).
[xUnit.net 00:00:16.42]       C:\h\w\A5D1090F\p\d\sdk\10.0.102-ci\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.RuntimeIdentifierInference.targets(351,5): message NETSDK1057: You are using a preview version of .NET. See: https://aka.ms/dotnet-support-policy [C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ConsoleApp\ConsoleApp.csproj]
[xUnit.net 00:00:16.42]       EXEC : error : Could not read the Windows SDK's Platform.xml at C:\Program Files (x86)\Windows Kits\10\Platforms\UAP\10.0.19041.0\Platform.xml [C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ManagedWinRTComponent\ManagedWinRTComponent.csproj]
[xUnit.net 00:00:16.42]       C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\.nuget\packages\microsoft.windows.cswinrt\2.1.1\build\Microsoft.Windows.CsWinRT.targets(290,5): error MSB3073: The command ""C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\.nuget\packages\microsoft.windows.cswinrt\2.1.1\cswinrt.exe" @"C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ManagedWinRTComponent\obj\Debug\net10.0-windows10.0.19041.0\Generated Files\CsWinRT\cswinrt.rsp"" exited with code 1. [C:\h\w\A5D1090F\t\dotnetSdkTests\ltosyl1k.kit\ManagedWinRTC---79256FB9\ManagedWinRTComponent\ManagedWinRTComponent.csproj]
[xUnit.net 00:00:16.42]       StdErr:
[xUnit.net 00:00:16.42]       
[xUnit.net 00:00:16.42]       , but found 1 (difference of 1).
[xUnit.net 00:00:16.42]       Stack Trace:
[xUnit.net 00:00:16.43]            at FluentAssertions.Execution.LateBoundTestFramework.Throw(String message)
[xUnit.net 00:00:16.43]            at FluentAssertions.Execution.DefaultAssertionStrategy.HandleFailure(String message)
[xUnit.net 00:00:16.43]            at FluentAssertions.Execution.AssertionScope.AddPreFormattedFailure(String formattedFailureMessage)
[xUnit.net 00:00:16.43]            at FluentAssertions.Execution.AssertionChain.FailWith(Func`1 getFailureReason)
[xUnit.net 00:00:16.43]            at FluentAssertions.Execution.AssertionChain.FailWith(Func`1 getFailureReason)
[xUnit.net 00:00:16.43]            at FluentAssertions.Execution.AssertionChain.FailWith(String message, Object[] args)
[xUnit.net 00:00:16.43]            at FluentAssertions.Numeric.NumericAssertionsBase`3.Be(T expected, String because, Object[] becauseArgs)
[xUnit.net 00:00:16.43]         /_/test/Microsoft.NET.TestFramework/Assertions/CommandResultAssertions.cs(27,0): at Microsoft.NET.TestFramework.Assertions.CommandResultAssertions.Pass()
[xUnit.net 00:00:16.43]         /_/test/Microsoft.NET.Build.Tests/GivenThatWeWantToBuildAWindowsRuntimeComponent.cs(186,0): at Microsoft.NET.Build.Tests.GivenThatWeWantToBuildAWindowsRuntimeComponent.ManagedWinRTComponentCanBeReferenced()
[xUnit.net 00:00:16.43]            at System.RuntimeMethodHandle.InvokeMethod(ObjectHandleOnStack target, Void** arguments, ObjectHandleOnStack sig, BOOL isConstructor, ObjectHandleOnStack result)
[xUnit.net 00:00:16.43]            at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
[xUnit.net 00:00:16.43]            at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)
[xUnit.net 00:00:16.43]       Output:
[xUnit...

</details>



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- Fixes dotnet/sdk#52032

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…0.0.26100.0 Co-authored-by: dsplaisted <145043+dsplaisted@users.noreply.github.com>

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Pull request overview

This PR fixes the ManagedWinRTComponentCanBeReferenced test that was failing in CI due to missing Platform.xml for Windows SDK 10.0.19041.0. The test is updated to use Windows SDK 10.0.26100.0, which is available on CI infrastructure and already in use in other test files.

Key Changes:

Updated Windows SDK version from 10.0.19041.0 to 10.0.26100.0 for both TargetFrameworks and CsWinRTWindowsMetadata properties
Removed obsolete WindowsSdkPackageVersion property that was marked as temporary

dsplaisted · 2026-01-07T22:20:19Z

/backport to 10.0.2xx

github-actions · 2026-01-07T22:20:28Z

Started backporting to 10.0.2xx (link to workflow run)

github-actions · 2026-01-07T22:20:55Z

@dsplaisted an error occurred while backporting to 10.0.2xx. See the workflow output for details.

dsplaisted · 2026-01-07T22:21:28Z

/backport to release/10.0.2xx

github-actions · 2026-01-07T22:21:36Z

Started backporting to release/10.0.2xx (link to workflow run)

Initial plan

0d04d77

Copilot AI assigned Copilot and dsplaisted Dec 11, 2025

Copilot started work on behalf of dsplaisted December 11, 2025 15:56 View session

Update ManagedWinRTComponentCanBeReferenced test to use Windows SDK 1…

06cdcc4

…0.0.26100.0 Co-authored-by: dsplaisted <145043+dsplaisted@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Fix skipped test for ManagedWinRTComponent reference~~ Update ManagedWinRTComponentCanBeReferenced test to Windows SDK 10.0.26100.0 Dec 11, 2025

Copilot finished work on behalf of dsplaisted December 11, 2025 16:08

Copilot AI requested a review from dsplaisted December 11, 2025 16:08

dsplaisted approved these changes Dec 11, 2025

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dsplaisted marked this pull request as ready for review December 11, 2025 17:34

dsplaisted requested review from MiYanni, Copilot and nagilson December 11, 2025 17:34

Copilot started reviewing on behalf of dsplaisted December 11, 2025 17:34 View session

dsplaisted requested a review from a team December 11, 2025 17:35

Copilot AI reviewed Dec 11, 2025

View reviewed changes

joeloff approved these changes Dec 11, 2025

View reviewed changes

dsplaisted merged commit 32c515a into main Dec 11, 2025
29 of 30 checks passed

dsplaisted deleted the copilot/fix-skipped-tests-managed-winrt branch December 11, 2025 18:07

dsplaisted mentioned this pull request Dec 11, 2025

[failing test] Microsoft.NET.Build.Tests.GivenThatWeWantToBuildAWindowsRuntimeComponent.ManagedWinRTComponentCanBeReferenced #52131

Closed

dotnet-maestro bot mentioned this pull request Dec 12, 2025

[main] Source code updates from dotnet/sdk dotnet/dotnet#3754

Merged

dsplaisted mentioned this pull request Dec 12, 2025

[main] Update dependencies from microsoft/testfx #51934

Merged

github-actions bot mentioned this pull request Jan 7, 2026

[release/10.0.2xx] Update ManagedWinRTComponentCanBeReferenced test to Windows SDK 10.0.26100.0 #52357

Merged

dsplaisted mentioned this pull request Jan 8, 2026

Skipped test: Microsoft.NET.Build.Tests.GivenThatWeWantToBuildAWindowsRuntimeComponent.ManagedWinRTComponentCanBeReferenced #52032

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Update ManagedWinRTComponentCanBeReferenced test to Windows SDK 10.0.26100.0#52134

Update ManagedWinRTComponentCanBeReferenced test to Windows SDK 10.0.26100.0#52134
dsplaisted merged 2 commits intomainfrom
copilot/fix-skipped-tests-managed-winrt

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