global.asax DD4T Application

public class MvcApplication : System.Web.HttpApplication
{
    ILifetimeScope BuildContainer()
    {
        var builder = new ContainerBuilder();
        builder.RegisterControllers(typeof(MvcApplication).Assembly);
        builder.UseDD4T();
        return builder.Build();
    }
    protected void Application_Start()
    {
        var builder = BuildContainer();
        DependencyResolver.SetResolver(new AutofacDependencyResolver(builder));
        
        AreaRegistration.RegisterAllAreas();
        RouteConfig.RegisterRoutes(RouteTable.Routes);
    }
}