TestLibrary.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Library</OutputType>
    <TargetFramework>netstandard1.5</TargetFramework>
    <ProjectGuid>{BB691360-49BC-46EB-8BA9-6A69A54CD4B0}</ProjectGuid>
  </PropertyGroup>
  <ItemGroup>
    <AssemblyAttribute Include="System.Reflection.AssemblyMetadataAttribute" Condition="'$(BuildNumber)' != ''">
      <_Parameter1>BuildNumber</_Parameter1>
      <_Parameter2>$(BuildNumber)</_Parameter2>
    </AssemblyAttribute>
    <Content Include="CopyToOutputFromProjectReference.txt" CopyToOutputDirectory="Always" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
  </ItemGroup>
</Project>