NBPApiClient.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <ItemGroup>
      <PackageReference Include="System.Runtime.Serialization.Json" Version="4.3.0" />
      <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
      <PackageReference Include="MathNet.Numerics" Version="4.9.0" />
   </ItemGroup>
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>netcoreapp2.2</TargetFramework>
  </PropertyGroup>

</Project>