There is a known issue that can occur when attempting to run Cake.Recipe (on a non Windows environment) against full .Net Framework when the solution that is being built includes an Xunit Test Project.
The error that can appear is:
[xUnit.net 00:00:00.76] XUnitTests: Catastrophic failure: System.TypeLoadException: Could not load type of field 'Xunit.Runner.VisualStudio.VsExecutionSink:recorder' (4) due to: Could not load file or assembly 'Microsoft.VisualStudio.TestPlatform.ObjectModel, Version=11.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies.
The solution to this problem is to add the following package reference into your test project:
<PackageReference Include="Microsoft.TestPlatform.ObjectModel" Version="16.6.1" Condition="$(TargetFramework.StartsWith('net4')) AND '$(OS)' == 'Unix'" />
NOTE:
This package reference version should match the package reference version of the Microsoft.NET.Test.Sdk package.