.NET Core csproj sample for a self-contained project

demoapi.csproj

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

  <PropertyGroup>
    <TargetFramework>netcoreapp2.1</TargetFramework>
    <RuntimeIdentifiers>ubuntu.18.04-x64</RuntimeIdentifiers>
  </PropertyGroup>

  <ItemGroup>
    <Folder Include="wwwroot\" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.App" />
    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" />
  </ItemGroup>
  <ItemGroup>
    <RuntimeHostConfigurationOption Include="System.Globalization.Invariant" Value="true" />
  </ItemGroup>

</Project>