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  • Argument
      • Message
        The item with identity 'Year' already exists in the metadata collection. Parameter name: item
      • Stack Trace
        at System.Data.Entity.Core.Metadata.Edm.MetadataCollection`1.AddToDictionary(Dictionary`2 identityDictionary, List`1 orderedList, String identity, Int32 index, Boolean updateIfFound) at System.Data.Entity.Core.Metadata.Edm.MetadataCollection`1.AddInternalHelper(T item, CollectionData collectionData, Boolean updateIfFound) at System.Data.Entity.Core.Metadata.Edm.MemberCollection.Add(EdmMember member) at System.Data.Entity.Core.Metadata.Edm.StructuralType.AddMember(EdmMember member, Boolean forceAdd) at System.Data.Entity.ModelConfiguration.Mappers.PropertyMapper.MapIfNotNavigationProperty(PropertyInfo propertyInfo, EntityType entityType, Func`1 entityTypeConfiguration) at System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.<>c__DisplayClass14.<MapEntityType>b__e(PropertyMapper m, PropertyInfo p) at System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.MapStructuralElements[TStructuralTypeConfiguration](Type type, ICollection`1 annotations, Action`2 propertyMappingAction, Boolean mapDeclaredPropertiesOnly, Func`1 structuralTypeConfiguration) at System.Data.Entity.ModelConfiguration.Mappers.TypeMapper.MapEntityType(Type type) at System.Data.Entity.DbModelBuilder.<>c__DisplayClassd.<MapTypes>b__7(Type type) at System.Linq.Enumerable.WhereListIterator`1.MoveNext() at System.Data.Entity.Utilities.IEnumerableExtensions.Each[T](IEnumerable`1 ts, Action`1 action) at System.Data.Entity.DbModelBuilder.MapTypes(EdmModel model) at System.Data.Entity.DbModelBuilder.Build(DbProviderManifest providerManifest, DbProviderInfo providerInfo) at System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection) at System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext) at System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input) at System.Data.Entity.Internal.LazyInternalContext.InitializeContext() at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() at System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext() at System.Data.Entity.Infrastructure.DbQuery`1.System.Linq.IQueryable.get_Provider() at System.Linq.Queryable.Where[TSource](IQueryable`1 source, Expression`1 predicate) at WebXRM_ENT.TrainingCourse.LoadCourses(Int32 ParentID) in C:\_w\XRM.NET\XRM.NET\WebXRM\WebXRM_ENT\Entities\TrainingCourse.vb:line 69 at WebXRM_ENT.TrainingCourse.PopulateTreeRec(Int32 HideInactive, ArrayList& InactiveCourses, Int32 topicID, TreeNode node) in C:\_w\XRM.NET\XRM.NET\WebXRM\WebXRM_ENT\Entities\TrainingCourse.vb:line 157 at WebXRM.Train_Main.Page_Load(Object sender, EventArgs e) in C:\_w\XRM.NET\XRM.NET\WebXRM\WebXRM\Training\Train_Main.aspx.vb:line 11 at System.Web.UI.Control.OnLoad(EventArgs e) at WebXRM.BasePage.OnLoad(EventArgs e) in C:\_w\XRM.NET\XRM.NET\WebXRM\WebXRM\BasePage.vb:line 1591 at System.Web.UI.Adapters.ControlAdapter.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
  • Http Unhandled
      • Message
        Exception of type 'System.Web.HttpUnhandledException' was thrown.
      • Stack Trace
        at System.Web.UI.Page.HandleError(Exception e) at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) at System.Web.UI.Page.ProcessRequest() at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) at System.Web.UI.Page.ProcessRequest(HttpContext context) at ASP.training_train_main_aspx.ProcessRequest(HttpContext context) at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() at System.Web.HttpApplication.<>c__DisplayClass285_0.<ExecuteStepImpl>b__0() at System.Web.HttpApplication.StepInvoker.Invoke(Action executionStep) at System.Web.HttpApplication.StepInvoker.<>c__DisplayClass4_0.<Invoke>b__0() at OpenTelemetry.Instrumentation.AspNet.TelemetryHttpModule.OnExecuteRequestStep(HttpContextBase context, Action step) at System.Web.HttpApplication.<>c__DisplayClass284_0.<OnExecuteRequestStep>b__0(Action nextStepAction) at System.Web.HttpApplication.StepInvoker.Invoke(Action executionStep) at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)