public void Configuration2(IAppBuilder appBuilder) { StructureMap.IContainer container = IoC.Initialize(); container.AssertConfigurationIsValid(); var types = container.WhatDoIHave(); Debug.WriteLine(container.WhatDoIHave()); HttpConfiguration httpConfiguration = new HttpConfiguration { DependencyResolver = new StructureMapWebApiDependencyResolver(container) }; WebApiConfig.Register(httpConfiguration); appBuilder.UseWebApi(httpConfiguration); }