Question

I’m having problem moving from mvc 1 to mvc 2.
In my old project I used Active Record.

Now running on new project where trying to get data from reposetory

      public T[] SlicedFindAll(int firstResult, int maxResult, DetachedCriteria criteria)
  {
      return ActiveRecordMediator<T>.SlicedFindAll(firstResult, maxResult, criteria);
  }

I recive an error “The given key was not present in the dictionary.”

This is a stack trace:

[KeyNotFoundException: The given key was not present in the dictionary.]
System.Collections.Generic.Dictionary2.get_Item(TKey key) +9627953
NHibernate.Cfg.Mapping.GetPersistentClass(String className) +85
NHibernate.Cfg.Mapping.GetIdentifierType(String className) +66
NHibernate.Type.EntityType.GetIdentifierType(IMapping factory) +84
NHibernate.Type.EntityType.GetIdentifierOrUniqueKeyType(IMapping factory) +112
NHibernate.Type.ManyToOneType.GetColumnSpan(IMapping mapping) +66
NHibernate.Mapping.SimpleValue.IsValid(IMapping mapping) +96
NHibernate.Mapping.ToOne.IsValid(IMapping mapping) +144
NHibernate.Mapping.Property.IsValid(IMapping mapping) +80
NHibernate.Mapping.PersistentClass.Validate(IMapping mapping) +138
NHibernate.Mapping.RootClass.Validate(IMapping mapping) +68
NHibernate.Cfg.Configuration.ValidateEntities() +246
NHibernate.Cfg.Configuration.Validate() +44
NHibernate.Cfg.Configuration.BuildSessionFactory() +86
Castle.ActiveRecord.Framework.SessionFactoryHolder.GetSessionFactory(Type type) in d:\Dev\Out\castleproject-Castle.ActiveRecord-b0f7972\castleproject-Castle.ActiveRecord-b0f7972\src\Castle.ActiveRecord\Framework\SessionFactoryHolder.cs:135
Castle.ActiveRecord.Framework.SessionFactoryHolder.CreateScopeSession(Type type) in d:\Dev\Out\castleproject-Castle.ActiveRecord-b0f7972\castleproject-Castle.ActiveRecord-b0f7972\src\Castle.ActiveRecord\Framework\SessionFactoryHolder.cs:296
Castle.ActiveRecord.Framework.SessionFactoryHolder.CreateSession(Type type) in d:\Dev\Out\castleproject-Castle.ActiveRecord-b0f7972\castleproject-Castle.ActiveRecord-b0f7972\src\Castle.ActiveRecord\Framework\SessionFactoryHolder.cs:182
Castle.ActiveRecord.ActiveRecordBase.SlicedFindAll(Type targetType, Int32 firstResult, Int32 maxResults, Order[] orders, DetachedCriteria criteria) in d:\Dev\Out\castleproject-Castle.ActiveRecord-b0f7972\castleproject-Castle.ActiveRecord-b0f7972\src\Castle.ActiveRecord\Framework\ActiveRecordBase.cs:1420
Castle.ActiveRecord.ActiveRecordMediator.SlicedFindAll(Type targetType, Int32 firstResult, Int32 maxResults, Order[] orders, DetachedCriteria criteria) in d:\Dev\Out\castleproject-Castle.ActiveRecord-b0f7972\castleproject-Castle.ActiveRecord-b0f7972\src\Castle.ActiveRecord\Framework\ActiveRecordMediator.cs:185
Castle.ActiveRecord.ActiveRecordMediator1.SlicedFindAll(Int32 firstResult, Int32 maxResults, DetachedCriteria criteria, Order[] orders) in d:\Dev\Out\castleproject-Castle.ActiveRecord-b0f7972\castleproject-Castle.ActiveRecord-b0f7972\src\Castle.ActiveRecord\Framework\ActiveRecordMediator.Generic.cs:241
Cameos.Core.Persistence.Repository1.SlicedFindAll(Int32 firstResult, Int32 maxResult, DetachedCriteria criteria) in d:\Dev\MVC2\Cameos\src\Cameos.Core\Persistence\Repository.cs:96
Cameos.Core.Paging.PagedList1..ctor(IRepository1 repository, Int32 page, Int32 size, DetachedCriteria criteria) in d:\Dev\MVC2\Cameos\src\Cameos.Core\Paging\PagedList.cs:24
Cameos.Core.Paging.PagedList1.Create(IRepository1 repository, Int32 page, Int32 pageSize, DetachedCriteria criteria) in d:\Dev\MVC2\Cameos\src\Cameos.Core\Paging\PagedList.cs:13
Cameos.Core.Paging.PaginationHelpers.Paginate(IRepository1 repository, Int32 startPage, Int32 pageSize, DetachedCriteria criteria) in d:\Dev\MVC2\Cameos\src\Cameos.Core\Paging\PaginationHelpers.cs:52
Cameos.Core.Paging.PaginationHelpers.Paginate(IRepository1 repository, Int32 startPage, Int32 pageSize, Order order, ICriterion[] criteria) in d:\Dev\MVC2\Cameos\src\Cameos.Core\Paging\PaginationHelpers.cs:34
Cameos.Web.Areas.Admin.Controllers.CompanyController.Index(Nullable1 page) in d:\Dev\MVC2\Cameos\src\Cameos.Web2\Areas\Admin\Controllers\CompanyController.cs:26
lambda_method(Closure , ControllerBase , Object[] ) +145
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +51
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary2 parameters) +409
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary2 parameters) +52
System.Web.Mvc.<>c_DisplayClassd.b_a() +127
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func1 continuation) +436
System.Web.Mvc.<>c__DisplayClassf.<InvokeActionMethodWithFilters>b__c() +61
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func1 continuation) +436
System.Web.Mvc.<>c_DisplayClassf.b_c() +61
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList1 filters, ActionDescriptor actionDescriptor, IDictionary2 parameters) +305
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +830
System.Web.Mvc.Controller.ExecuteCore() +136
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +111
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +39
System.Web.Mvc.<>c_DisplayClass8.b_4() +65
System.Web.Mvc.Async.<>c_DisplayClass1.b_0() +44
System.Web.Mvc.Async.<>c__DisplayClass81.<BeginSynchronous>b__7(IAsyncResult _) +42
System.Web.Mvc.Async.WrappedAsyncResult1.End() +141
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +54
System.Web.Mvc.Async.AsyncResultWrapper.End(IAsyncResult asyncResult, Object tag) +40
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +52
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +38
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8836913
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184

Answer 1

A [BelongsTo] is misconfigured.