Wrong WebView2Loader.dll and Microsoft.Web.WebView2.Core.dll when create ARM64 package on x64 machine

[sunjw]

Describe the bug

After created store upload package in VS 2022, with selecting x64 and arm64 architecture, on a x64 machine, the "WebView2Loader.dll" in the ARM64 msix is a x64 version, not aarch64.

Steps to reproduce the bug

1. Create store upload package
2. Selecting x64 and arm64 architecture

Expected behavior

No response

Screenshots

NuGet package version

None

Packaging type

No response

Windows version

No response

IDE

No response

Additional context

No response

[DHowett]

This is impacting PowerToys as well - our ARM64 deployment is on the floor.

[Scottj1s]

A fix for this issue is expected in the November update of Microsoft.Web.WebView2 package on nuget.org. In the meantime, the following workaround may be useful (added to your project file):

<Target Name="FixWebView2Path" BeforeTargets="PrepareForBuild" Condition="'$(PlatformTarget)'=='arm64'">
  <ItemGroup>
    <Content Remove="@(Content)" Condition="'%(Content.Link)'=='runtimes\win-x64\native\WebView2Loader.dll'"/>
    <Content Include="$(NugetRoot)runtimes\win-arm64\native\WebView2Loader.dll">
      <Link>runtimes\win-arm64\native\WebView2Loader.dll</Link>
      <PublishState>Included</PublishState>
      <Visible>False</Visible>
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      <IncludeInVsix>true</IncludeInVsix>
      <Pack>false</Pack>
    </Content>
    <ReferenceCopyLocalPaths Remove="@(ReferenceCopyLocalPaths)" Condition="'%(FileName)%(Extension)'=='Microsoft.Web.WebView2.Core.dll'"/>
    <ReferenceCopyLocalPaths Include="$(NugetRoot)runtimes\win-arm64\native_uap\Microsoft.Web.WebView2.Core.dll"/>
  </ItemGroup>
</Target>