Microsoft.Build.Msix.Packaging.MsixBundle.targets

<Project>

  <!--
    =======================================================================
    Microsoft.Build.Msix.Packaging.MsixBundle.targets
    =======================================================================
    
    This targets file can be imported at the bottom of the main app project file (.csproj):
    
      <Import Project="Microsoft.Build.Msix.Packaging.MsixBundle.targets" />
    
    In order to build a .msix bundle, you can use `dotnet build`:
    
      dotnet build /t:GenerateMsixBundle -f net7.0-windows10.0.19041.0 <path/to/app.csproj>
    
    In order to control the RIDs in the app bundle, you can override them using the $(RuntimeIdentifiers)
    propertyin your .csproj. Make sure to condition on the Windows TargetFramework:
    
      <PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">
        <RuntimeIdentifiers>win10-x64;win10-x86;win10-arm64</RuntimeIdentifiers>
      </PropertyGroup>
  -->

  <!-- Make sure all the available RIDs are specified -->
  <PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows' and '$(RuntimeIdentifiers)' == ''">
    <RuntimeIdentifiers>win10-x64;win10-x86;win10-arm64</RuntimeIdentifiers>
  </PropertyGroup>

  <!-- Make at least one RID is specified for the IDE -->
  <PropertyGroup Condition=" '$([MSBuild]::GetTargetPlatformIdentifier($(TargetFramework)))' == 'windows' and '$(RuntimeIdentifier)' == '' ">
    <_SingleProjectHostArchitecture>$([System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture)</_SingleProjectHostArchitecture>
    <_SingleProjectHostArchitecture>$(_SingleProjectHostArchitecture.ToLower())</_SingleProjectHostArchitecture>
    <RuntimeIdentifier>win10-$(_SingleProjectHostArchitecture)</RuntimeIdentifier>
  </PropertyGroup>

  <!-- Workaround for https://github.com/microsoft/WindowsAppSDK/issues/3337 -->
  <PropertyGroup Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows' and '$(RuntimeIdentifierOverride)' != ''">
    <RuntimeIdentifier>$(RuntimeIdentifierOverride)</RuntimeIdentifier>
  </PropertyGroup>

  <!-- This runs inside each publish to determine the output path of the generated .msix -->
  <Target
    Name="_GenerateMsixBundlePublish"
    Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'"
    DependsOnTargets="Publish"
    Returns="@(_MsixPackageOutput)">

    <ItemGroup>
      <_MsixPackageOutput
        Include="$(AppxPackageOutput)"
        AppxPackageNameNeutral="$(AppxPackageNameNeutral)"
        AppxBundleExtension="$(AppxBundleExtension)"
        AppxPackageConfiguration="$(_AppxPackageConfiguration)" />
    </ItemGroup>

  </Target>

  <!-- This runs once to build the .msixbundle -->
  <Target
    Name="GenerateMsixBundle"
    Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">

    <!-- build up the matrix of the project to RID -->
    <ItemGroup>
      <_MsixBundleRID Include="$(RuntimeIdentifiers)" />
      <_MsixBundleProject Include="$(MSBuildProjectFile)" AdditionalProperties="RuntimeIdentifierOverride=%(_MsixBundleRID.Identity)" />
    </ItemGroup>

    <!-- publish the project for each RID -->
    <MSBuild
      Projects="@(_MsixBundleProject)"
      Targets="_GenerateMsixBundlePublish"
      BuildInParallel="$(BuildInParallel)">
      <Output
        TaskParameter="TargetOutputs"
        ItemName="_MsixPackageOutput" />
    </MSBuild>

    <!-- determine all the properties of the .msixbundle -->
    <PropertyGroup>
      <AppxPackageNameNeutral>%(_MsixPackageOutput.AppxPackageNameNeutral)</AppxPackageNameNeutral>
      <AppxBundleExtension>%(_MsixPackageOutput.AppxBundleExtension)</AppxBundleExtension>
      <AppxPackageConfiguration>%(_MsixPackageOutput.AppxPackageConfiguration)</AppxPackageConfiguration>
      <_MsixBundlePath>$(PackageOutputPath)$(TargetFramework)\$(AppxPackageNameNeutral)$(AppxPackageConfiguration)$(AppxBundleExtension)</_MsixBundlePath>
      <_MsixBundleFilesPath>$(IntermediateOutputPath)msixbundle.files</_MsixBundleFilesPath>
    </PropertyGroup>

    <!-- determine all the files of the .msixbundle -->
    <ItemGroup>
      <_MsixBundleFilesLines Include="[Files]" />
      <_MsixBundleFilesLines Include="@(_MsixPackageOutput->'&quot;%(FullPath)&quot; &quot;%(Filename)%(Extension)&quot;')" />
    </ItemGroup>

    <!-- write out the files -->
    <WriteLinesToFile
      File="$(_MsixBundleFilesPath)"
      Lines="@(_MsixBundleFilesLines)"
      Overwrite="True"
      WriteOnlyWhenDifferent="True" />
    <ItemGroup>
      <FileWrites Include="$(_MsixBundleFilesPath)" />
    </ItemGroup>

    <!-- generate the .msix bundle -->
    <Exec Command="&quot;$(MakeAppxExeFullPath)&quot; bundle /v /o /f &quot;$(_MsixBundleFilesPath)&quot; /p &quot;$(_MsixBundlePath)&quot;" />

    <!-- sign the .msix bundle -->
    <WinAppSdkSignAppxPackage
      Condition="'$(AppxPackageSigningEnabled)' == 'true'"
      AppxPackageToSign="$(_MsixBundlePath)"
      CertificateThumbprint="$(PackageCertificateThumbprint)"
      CertificateFile="$(PackageCertificateKeyFile)"
      HashAlgorithmId="$(AppxHashAlgorithmId)"
      EnableSigningChecks="$(EnableSigningChecks)"
      SignAppxPackageExeFullPath="$(SignAppxPackageExeFullPath)"
      TempCertificateFilePath="$(TempCertificateFilePath)"
      ExportCertificate="true">
      <Output TaskParameter="ResolvedThumbprint" PropertyName="ResolvedThumbPrint"/>
      <Output TaskParameter="AppxPackagePublicKeyFile" PropertyName="AppxPackagePublicKeyFile" />
    </WinAppSdkSignAppxPackage>

  </Target>

</Project>

Hello @mattleibow
Am trying to use this file for generating msixbundle from a .Net MAUI Blazor App and it is generating the msixbundle file successfully.
But when I try to sideload the generated msixbundle using a custom appinstaller file, am getting a full package name mismatch error from the installer.

So, I further analyzed and found that the generated msix bundle contains a file AppxMetadata/AppxBundleManifest.xml and this file contains the wrong version number for the Identity tag instead of the app version number.

So, can you please help me configure the bundle to use the current app version number for the Identity tag in file AppxMetadata/AppxBundleManifest.xml