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I 엔티티 프레임 워크 코드 첫 번째 (4.1)EntityFramework 4.1 GetValidationErrors 내부 예외
"An item with the same key has already been added."
스택 트레이스는 다음과 같다을 사용하여) (System.Data.Entity.DbContext.GetValidationErrors를 호출 할 때 다음과 같은 예외가 있습니다
at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
at System.Data.Metadata.Edm.ObjectItemConventionAssemblyLoader.TryCreateType(Type type, StructuralType cspaceType, EdmType& newOSpaceType)
at System.Data.Metadata.Edm.ObjectItemConventionAssemblyLoader.LoadTypesFromAssembly()
at System.Data.Metadata.Edm.ObjectItemAssemblyLoader.Load()
at System.Data.Metadata.Edm.ObjectItemAssemblyLoader.LoadAssemblies(IEnumerable`1 assemblies, ObjectItemLoadingSessionData sessionData)
at System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, ObjectItemLoadingSessionData loadingData)
at System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, KnownAssembliesSet knownAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage, Object& loaderCookie, Dictionary`2& typesInLoading, List`1& errors)
at System.Data.Metadata.Edm.ObjectItemCollection.LoadAssemblyFromCache(ObjectItemCollection objectItemCollection, Assembly assembly, Boolean loadReferencedAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage)
at System.Data.Metadata.Edm.ObjectItemCollection.ExplicitLoadFromAssembly(Assembly assembly, EdmItemCollection edmItemCollection, Action`1 logLoadMessage)
at System.Data.Metadata.Edm.MetadataWorkspace.ExplicitLoadFromAssembly(Assembly assembly, ObjectItemCollection collection, Action`1 logLoadMessage)
at System.Data.Entity.Infrastructure.DbCompiledModel.CreateObjectContext[TContext](DbConnection existingConnection)
at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
at System.Data.Entity.Internal.LazyInternalContext.get_ObjectContext()
at System.Data.Entity.Internal.InternalContext.DetectChanges(Boolean force)
at System.Data.Entity.Internal.InternalContext.GetStateEntries(Func`2 predicate)
at System.Data.Entity.DbContext.GetValidationErrors()
불행히도 문제가 어디서 왔는지, 어떤 poco 엔티티가이 문제를 일으키는 지 확인할 수 없었습니다.
실마리가 있습니까?
감사