Reference fix

windows/WebViewBridgeComponent/WebViewBridgeComponent.vcxproj

 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props')" />
+  <Import Project="$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props" Condition="Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props')" />
   <PropertyGroup Label="Globals">
     <CppWinRTOptimized>true</CppWinRTOptimized>
     <CppWinRTRootNamespaceAutoMerge>true</CppWinRTRootNamespaceAutoMerge>
     <CppWinRTGenerateWindowsMetadata>true</CppWinRTGenerateWindowsMetadata>
     <MinimalCoreWin>true</MinimalCoreWin>
-    <ProjectGuid>{176323cd-97ce-4b0f-9d11-a2b77bda829b}</ProjectGuid>
+    <ProjectGuid>{fcb612ad-facc-410c-828c-24b5940b2762}</ProjectGuid>
     <ProjectName>WebViewBridgeComponent</ProjectName>
     <RootNamespace>WebViewBridgeComponent</RootNamespace>
     <DefaultLanguage>en-US</DefaultLanguage>
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
-    <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets')" />
+    <Import Project="$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets')" />
   </ImportGroup>
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props'))" />
-    <Error Condition="!Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets'))" />
+    <Error Condition="!Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.props'))" />
+    <Error Condition="!Exists('$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)packages\Microsoft.Windows.CppWinRT.2.0.200729.8\build\native\Microsoft.Windows.CppWinRT.targets'))" />
   </Target>
 </Project>