unity dependency Injection and redirect to action - asp.net-mvc-3

Question

i use Unity DI in project, but when redirect from one action to another get this error:
No parameterless constructor defined for this object. in FirstController _service property is initialized correct, and when call SecondController directly _service property is initialized correct, but when use RedirctToAction method from FirstController to redirect to SecondController get this Error:No parameterless constructor defined for this object.
my sample code is:
public interface IService
{
string Get();
}
public class Service : IService
{
public string Get()
{
return "Data";
}
}
public class FirstController : Controller
{
private readonly IService _service;
public FirstController(IService service)
{
_service = service;
}
public ActionResult Index()
{
return RedirectToAction("Index", "Second"); -----> this line
}
}
public class SecondController : Controller
{
private readonly IService _service;
public SecondController(IService service)
{
_service = service;
}
public ActionResult Index()
{
return View();
}
}
DI Code:
public static class Bootstrapper
{
public static IUnityContainer Initialise()
{
var container = BuildUnityContainer();
System.Web.Mvc.DependencyResolver.SetResolver(new DependencyResolver(container));
return container;
}
private static IUnityContainer BuildUnityContainer()
{
var container = new UnityContainer();
container.RegisterType<IService, Service>();
return container;
}
}
public class DependencyResolver : IDependencyResolver
{
private readonly IUnityContainer _unityContainer;
public DependencyResolver(IUnityContainer unityContainer)
{
_unityContainer = unityContainer;
}
public object GetService(System.Type serviceType)
{
try
{
var service = _unityContainer.Resolve(serviceType);
return service;
}
catch (Exception ex)
{
return null;
}
}
public IEnumerable<object> GetServices(System.Type serviceType)
{
try
{
return _unityContainer.ResolveAll(serviceType);
}
catch
{
return new List<object>();
}
}
}
Application_Start Initialise:
Bootstrapper.Initialise();