SampleApp.csproj

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

  <PropertyGroup>
    <TargetFramework>netstandard2.0</TargetFramework>
    <ProduceReferenceAssembly>true</ProduceReferenceAssembly>
  </PropertyGroup>

  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
    <DebugType>portable</DebugType>
    <DebugSymbols>true</DebugSymbols>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Xamarin.Forms" Version="4.8.0.1451" />
    <PackageReference Include="Xamarin.Essentials" Version="1.5.3.2" />
  </ItemGroup>
  <ItemGroup>
    <Folder Include="Models\" />
    <Folder Include="ViewModels\" />
    <Folder Include="Views\" />
    <Folder Include="images\" />
    <Folder Include="DependencyServices\" />
    <Folder Include="CustomRenderers\" />
  </ItemGroup>
  <ItemGroup>
    <None Remove="images\fork.png" />
    <None Remove="images\bell.png" />
  </ItemGroup>
  <ItemGroup>
    <EmbeddedResource Include="images\fork.png" />
    <EmbeddedResource Include="images\bell.png" />
  </ItemGroup>
</Project>