<Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <TargetFrameworks>netcoreapp3.1;netcoreapp3.0;netcoreapp2.2</TargetFrameworks> <RootNamespace>sample_csproj</RootNamespace> <IsPackable>false</IsPackable> </PropertyGroup> <ItemGroup> <!-- These packages will be downloaded over the network for testing proxy settings --> <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" /> <PackageReference Include="MSTest.TestAdapter" Version="2.1.0" /> <PackageReference Include="MSTest.TestFramework" Version="2.1.0" /> <PackageReference Include="coverlet.collector" Version="1.2.0" /> </ItemGroup> </Project>