Server Error in '/' Application.

The parameters dictionary contains a null entry for parameter 'sector' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.JsonResult Locations_Read(Kendo.Mvc.UI.DataSourceRequest, Int32)' in 'SitefinityWebApp.Mvc.Controllers.LocationController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
Parameter name: parameters

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.ArgumentException: The parameters dictionary contains a null entry for parameter 'sector' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.JsonResult Locations_Read(Kendo.Mvc.UI.DataSourceRequest, Int32)' in 'SitefinityWebApp.Mvc.Controllers.LocationController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
Parameter name: parameters

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:


[ArgumentException: The parameters dictionary contains a null entry for parameter 'sector' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.JsonResult Locations_Read(Kendo.Mvc.UI.DataSourceRequest, Int32)' in 'SitefinityWebApp.Mvc.Controllers.LocationController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.
Parameter name: parameters]
   System.Web.Mvc.ActionDescriptor.ExtractParameterFromDictionary(ParameterInfo parameterInfo, IDictionary`2 parameters, MethodInfo methodInfo) +433
   System.Linq.WhereSelectArrayIterator`2.MoveNext() +145
   System.Linq.Buffer`1..ctor(IEnumerable`1 source) +498
   System.Linq.Enumerable.ToArray(IEnumerable`1 source) +90
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +181
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.<>c__DisplayClass13.<InvokeActionMethodWithFilters>b__10() +80
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +466
   System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +659
   Telerik.Sitefinity.Mvc.ControllerWrapper.Execute() +117
   Telerik.Sitefinity.Mvc.ControllerActionInvoker.ExecuteController(MvcProxyBase proxyControl) +63
   Telerik.Sitefinity.Mvc.ControllerActionInvoker.TryInvokeAction(MvcProxyBase proxyControl, String& output) +195
   Telerik.Sitefinity.Mvc.Proxy.MvcControllerProxy.ExecuteController() +69
   System.Web.UI.Control.PreRenderRecursiveInternal() +200
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Control.PreRenderRecursiveInternal() +297
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +7479


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0