Server Error in '/' Application.

Object reference not set to an instance of an 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.NullReferenceException: Object reference not set to an instance of an 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:


[NullReferenceException: Object reference not set to an instance of an object.]
   System.Data.Entity.Core.Objects.Internal.SnapshotChangeTrackingStrategy.SetCurrentValue(EntityEntry entry, StateManagerMemberMetadata member, Int32 ordinal, Object target, Object value) +28
   System.Data.Entity.Core.Objects.DataClasses.EntityReference.UpdateForeignKeyValues(IEntityWrapper dependentEntity, IEntityWrapper principalEntity, Dictionary`2 changedFKs, Boolean forceChange) +1500
   System.Data.Entity.Core.Objects.DataClasses.EntityReference.UpdateDependentEndForeignKey(RelatedEnd targetRelatedEnd, Boolean forceForeignKeyChanges) +83
   System.Data.Entity.Core.Objects.DataClasses.RelatedEnd.Add(IEntityWrapper wrappedTarget, Boolean applyConstraints, Boolean addRelationshipAsUnchanged, Boolean relationshipAlreadyExists, Boolean allowModifyingOtherEndOfRelationship, Boolean forceForeignKeyChanges) +579
   System.Data.Entity.Core.Objects.ObjectStateManager.AddEntityToCollectionOrReference(MergeOption mergeOption, IEntityWrapper wrappedSource, AssociationEndMember sourceMember, IEntityWrapper wrappedTarget, AssociationEndMember targetMember, Boolean setIsLoaded, Boolean relationshipAlreadyExists, Boolean inKeyEntryPromotion) +396
   System.Data.Entity.Core.Objects.ObjectStateManager.UpdateRelationships(ObjectContext context, MergeOption mergeOption, AssociationSet associationSet, AssociationEndMember sourceMember, IEntityWrapper wrappedSource, AssociationEndMember targetMember, IList targets, Boolean setIsLoaded) +457
   System.Data.Entity.Core.Common.Internal.Materialization.Shaper.FullSpanAction(IEntityWrapper wrappedSource, IList`1 spannedEntities, AssociationEndMember targetMember) +379
   System.Data.Entity.Core.Common.Internal.Materialization.Shaper.HandleFullSpanElement(IEntityWrapper wrappedSource, IEntityWrapper wrappedSpannedEntity, AssociationEndMember targetMember) +196
   lambda_method(Closure , Shaper ) +6991
   System.Data.Entity.Core.Common.Internal.Materialization.Coordinator`1.ReadNextElement(Shaper shaper) +386
   System.Data.Entity.Core.Common.Internal.Materialization.SimpleEnumerator.MoveNext() +88
   System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) +436
   System.Linq.Enumerable.ToList(IEnumerable`1 source) +70
   Jobeex3.Controllers.JobsController.Index() +629
   lambda_method(Closure , ControllerBase , Object[] ) +87
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +229
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
   System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +77
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +69
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d() +72
   System.Web.Mvc.Async.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f() +387
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +69
   System.Web.Mvc.Async.<>c__DisplayClass2b.<BeginInvokeAction>b__1c() +38
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +188
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +59
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +43
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +602
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3429.0