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Fixing a WindowBase warning during compile (#49049)

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Removing a warning that pops up a lot.

**With fix:**
<img width="694" height="674" alt="image"
src="https://github.com/user-attachments/assets/2a496935-0d4b-45e6-97f2-62b8d4004faa"
/>

**Without fix:** here it is commented out to show the warning. 
<img width="1033" height="654" alt="Screenshot 2026-06-30 111523"
src="https://github.com/user-attachments/assets/5d8f5df9-3c45-4155-a995-4b666df894fd"
/>

Found conflicts between different versions of "WindowsBase" that could
not be resolved.
There was a conflict between "WindowsBase, Version=4.0.0.0,
Culture=neutral, PublicKeyToken=31bf3856ad364e35" and "WindowsBase,
Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".
"WindowsBase, Version=4.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35" was chosen because it was primary and
"WindowsBase, Version=5.0.0.0, Culture=neutral,
PublicKeyToken=31bf3856ad364e35" was not.
References which depend on "WindowsBase, Version=4.0.0.0,
Culture=neutral, PublicKeyToken=31bf3856ad364e35" [C:\Program
Files\dotnet\packs\Microsoft.NETCore.App.Ref\10.0.8\ref\net10.0\WindowsBase.dll].
C:\Program
Files\dotnet\packs\Microsoft.NETCore.App.Ref\10.0.8\ref\net10.0\WindowsBase.dll
Project file item includes which caused reference "C:\Program
Files\dotnet\packs\Microsoft.NETCore.App.Ref\10.0.8\ref\net10.0\WindowsBase.dll".
C:\Program
Files\dotnet\packs\Microsoft.NETCore.App.Ref\10.0.8\ref/net10.0/WindowsBase.dll
References which depend on or have been unified to "WindowsBase,
Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [].

C:\Users\crutkas\.nuget\packages\microsoft.web.webview2\1.0.3719.77\lib_manual\net5.0-windows10.0.17763.0\Microsoft.Web.WebView2.Wpf.dll
Project file item includes which caused reference
"C:\Users\crutkas\.nuget\packages\microsoft.web.webview2\1.0.3719.77\lib_manual\net5.0-windows10.0.17763.0\Microsoft.Web.WebView2.Wpf.dll".

C:\Users\crutkas\.nuget\packages\microsoft.web.webview2\1.0.3719.77\buildTransitive\..\\lib_manual\net5.0-windows10.0.17763.0\Microsoft.Web.WebView2.Wpf.dll
This commit is contained in:
Clint Rutkas
2026-07-28 07:45:56 -07:00
committed by GitHub
parent 021ca6aee0
commit 7afcb8ce42
1 changed files with 20 additions and 0 deletions
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20
Directory.Build.targets
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@@ -48,6 +48,26 @@
<MSBuild Projects="$(MSBuildProjectFullPath)" Targets="Restore" Properties="RestoreInProgress=true" BuildInParallel="false" />
</Target>
<!--
The Microsoft.Web.WebView2 package's managed .targets unconditionally references the WPF
wrapper (Microsoft.Web.WebView2.Wpf.dll) for every non-WinRT .NET project. That wrapper
depends on WPF's WindowsBase, which only ships in the WPF profile of the WindowsDesktop
reference pack. WinForms-only or plain projects therefore resolve WindowsBase to the
4.0.0.0 facade from Microsoft.NETCore.App, producing an MSB3277 conflict against the
wrapper's 5.0.0.0 reference. A project that doesn't enable WPF can't use the WPF WebView2
control anyway, so drop that unused reference before RAR runs (WPF projects keep it).
WinUI/WinAppSDK projects use the CsWinRT projection and never get this reference, so this
is a no-op for them.
-->
<Target
Name="RemoveUnusedWebView2WpfReference"
BeforeTargets="ResolveAssemblyReferences"
Condition="'$(UseWPF)' != 'true'">
<ItemGroup>
<Reference Remove="@(Reference)" Condition="'%(Reference.Filename)' == 'Microsoft.Web.WebView2.Wpf'" />
</ItemGroup>
</Target>
<PropertyGroup Condition="'$(IgnoreExperimentalWarnings)' == 'true'">
<NoWarn>$(NoWarn);CS8305;SA1500;CA1852</NoWarn>
</PropertyGroup>