protected void Application_Start()
{
var builder = AutofacConfig.ConfigureContainer();
AreaRegistration.RegisterAllAreas();
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);
var config = AutoMapperConfig.ConfigureContainer(AutoMapperConfigHelper.AddWebMappings());
builder.Register((x) => config.CreateMapper()).As(typeof(IMapper));
builder.RegisterControllers(typeof(MvcApplication).Assembly);
var container = builder.Build();
DependencyResolver.SetResolver(new AutofacDependencyResolver(container));
}