I am using StructureMap.Microsoft.DependencyInjection in ASP.NET Core Web API and when I call app.ApplicationServices.GetServices(Type serviceType) with a generic type a NullReferenceException is ...

My main projects all use StructureMap 3 now, but I can't seem to get the test projects up to the same version. When I update StructureMap from 2.6.4.1 to 3.0.3.116, I ...