private void RegisterAutoFacComponents()
{
var builder = new ContainerBuilder();
ComponentRegistration.RegisterService(builder);
builder.RegisterControllers(Assembly.GetExecutingAssembly());
builder.RegisterApiControllers(Assembly.GetExecutingAssembly());
IContainer container = builder.Build(ContainerBuildOptions.IgnoreStartableComponents);
var resolver = new AutofacWebApiDependencyResolver(container);
GlobalConfiguration.Configuration.DependencyResolver = resolver;
DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
}