AuthSample.csproj

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp3.0</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <Content Update="App.razor">
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      <Generator>MSBuild:RazorGenerateComponentDeclarationDesignTime</Generator>
    </Content>
    <Content Update="appsettings.Development.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
    </Content>
    <Content Update="appsettings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
    </Content>
    <Content Update="Shared\MainLayout.razor">
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      <Generator>MSBuild:RazorGenerateComponentDeclarationDesignTime</Generator>
    </Content>
    <Content Update="Shared\NavMenu.razor">
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      <Generator>MSBuild:RazorGenerateComponentDeclarationDesignTime</Generator>
    </Content>
    <Content Update="_Imports.razor">
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
      <Generator>MSBuild:RazorGenerateComponentDeclarationDesignTime</Generator>
    </Content>
  </ItemGroup>

  <ItemGroup>
    <Watch Remove="MainLayout.razor" />
  </ItemGroup>

  <ItemGroup>
    <UpToDateCheckInput Remove="MainLayout.razor" />
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  <ItemGroup>
    <_ContentIncludedByDefault Remove="MainLayout.razor" />
    <_ContentIncludedByDefault Remove="NavMenu.razor" />
  </ItemGroup>

  <ItemGroup>
    <Watch Remove="NavMenu.razor" />
  </ItemGroup>

  <ItemGroup>
    <UpToDateCheckInput Remove="NavMenu.razor" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNet.WebApi.Client" Version="5.2.7" />
  </ItemGroup>

</Project>