Fixing build issues due to adding WinUI projection (#132)

* add targetplatformversion to build

* more fixes

* fix timing of projection generation

WinUI/WinUIProjection/WinUIProjection.csproj

@@ -3,6 +3,7 @@
  <PropertyGroup>
  <TargetFramework>netcoreapp5.0</TargetFramework>
  <Platforms>x64;x86</Platforms>
+ <TargetPlatformVersion>10.0.18362.0</TargetPlatformVersion>
  </PropertyGroup>
 
  <PropertyGroup>
@@ -11,6 +12,8 @@
 
  <ItemGroup>
  <ProjectReference Include="..\..\WinRT.Runtime\WinRT.Runtime.csproj" />
+ <ProjectReference Include="..\..\cswinrt\cswinrt.vcxproj" />
+
  <!-- Exclude compile and build time assets so we don't think we're building a real WinUI App -->
  <PackageReference Include="Microsoft.WinUI" Version="$(MicrosoftWinUIVersion)" GeneratePathProperty="true">
  <ExcludeAssets>compile; build</ExcludeAssets>
@@ -20,7 +23,7 @@
  <InternalsVisibleTo Include="WinUITest"/>
  </ItemGroup>
 
- <Target Name="GenerateWinUIProjection" BeforeTargets="DispatchToInnerBuilds;Build" Condition="'$(GenerateTestProjection)'=='true'">
+ <Target Name="GenerateWinUIProjection" BeforeTargets="CoreCompile">
  <ItemGroup>
  <!--PkgMicrosoft_UI_Xaml is defined by Nuget reference-->
  <WinUIWinMDs Include="$(PkgMicrosoft_WinUI)/**/*.winmd" />
@@ -41,6 +44,7 @@
  -exclude Windows.ApplicationModel.Store.Preview
  </CsWinRTParams>
  </PropertyGroup>
+ <MakeDir Directories="$(ProjectDir)Generated Files"/>
  <WriteLinesToFile File="$(CsWinRTResponseFile)" Lines="$(CsWinRTParams)" Overwrite="true" WriteOnlyWhenDifferent="true" />
  <Message Text="$(CsWinRTCommand)" Importance="$(CsWinRTVerbosity)" />
  <Exec Command="$(CsWinRTCommand)" />