我有以下控制器定义
public class FeaturedAccommodationController : Controller { ... public FeaturedAccommodationController(IAccommodationService accommodationService) { ... } public ActionResult Index(int page = 1) { ... } ... }
@Html.ActionLink("Featured Accommodations","Index","FeaturedAccommodation")
由于某些原因,当我点击这个链接我得到以下错误.这里有什么问题?
No parameterless constructor defined for this object. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.MissingMethodException: No parameterless constructor defined for this object. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [MissingMethodException: No parameterless constructor defined for this object.] System.RuntimeTypeHandle.CreateInstance(RuntimeType type,Boolean publicOnly,Boolean noCheck,Boolean& canBeCached,RuntimeMethodHandleInternal& ctor,Boolean& bNeedSecurityCheck) +0 System.RuntimeType.CreateInstanceSlow(Boolean publicOnly,Boolean skipCheckThis,Boolean fillCache) +98 System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly,Boolean skipVisibilityChecks,Boolean fillCache) +241 System.Activator.CreateInstance(Type type,Boolean nonPublic) +69 System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext,Type controllerType) +67 [InvalidOperationException: An error occurred when trying to create a controller of type 'JattCore.UI.Admin.Controllers.FeaturedAccommodationController'. Make sure that the controller has a parameterless public constructor.] System.Web.Mvc.DefaultControllerActivator.Create(RequestContext requestContext,Type controllerType) +182 System.Web.Mvc.DefaultControllerFactory.GetControllerInstance(RequestContext requestContext,Type controllerType) +80 System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext,String controllerName) +74 System.Web.Mvc.MvcHandler.ProcessRequestInit(HttpContextBase httpContext,IController& controller,IControllerFactory& factory) +232 System.Web.Mvc.<>c__DisplayClass6.<BeginProcessRequest>b__2() +49 System.Web.Mvc.<>c__DisplayClassb`1.<ProcessInApplicationTrust>b__a() +13 System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7 System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22 System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Func`1 func) +124 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContextBase httpContext,AsyncCallback callback,Object state) +98 System.Web.Mvc.MvcHandler.BeginProcessRequest(HttpContext httpContext,Object state) +50 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.BeginProcessRequest(HttpContext context,AsyncCallback cb,Object extraData) +16 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8970356 System.Web.HttpApplication.ExecuteStep(IExecutionStep step,Boolean& completedSynchronously) +184