我们刚刚将所有实体转移到一个新的解决方案中，以便我们可以开始开发EF5 / MVC4 / net4.5。但是，我有一个令我感到困惑的问题，我已经无情地寻找可能的原因，但却一无所获。
使用Code-First创建了迁移，数据库表填充没有问题。
问题是，无论我尝试查询哪个实体，我都会收到以下错误： System.Data.EntityCommandCompilationException {“字典中没有给定的密钥。”}
这是StackTrack：
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at System.Data.Mapping.ViewGeneration.Structures.MemberDomainMap.GetDomainInternal(MemberPath path)
at System.Data.Mapping.ViewGeneration.QueryRewriting.FragmentQueryKB.CreateIsOfTypeCondition(MemberPath currentPath, IEnumerable`1 derivedTypes, MemberDomainMap domainMap)
at System.Data.Mapping.ViewGeneration.QueryRewriting.FragmentQueryKB.CreateVariableConstraintsRecursion(EdmType edmType, MemberPath currentPath, MemberDomainMap domainMap, EdmItemCollection edmItemCollection)
at System.Data.Mapping.ViewGeneration.QueryRewriting.FragmentQueryKB.CreateVariableConstraintsRecursion(EdmType edmType, MemberPath currentPath, MemberDomainMap domainMap, EdmItemCollection edmItemCollection)
at System.Data.Mapping.ViewGeneration.ViewgenContext..ctor(ViewTarget viewTarget, EntitySetBase extent, IEnumerable`1 extentCells, CqlIdentifiers identifiers, ConfigViewGenerator config, MemberDomainMap queryDomainMap, MemberDomainMap updateDomainMap, StorageEntityContainerMapping entityContainerMapping)
at System.Data.Mapping.ViewGeneration.ViewGenerator.CreateViewgenContext(EntitySetBase extent, ViewTarget viewTarget, CqlIdentifiers identifiers)
at System.Data.Mapping.ViewGeneration.ViewGenerator.GenerateQueryViewForExtentAndType(StorageEntityContainerMapping entityContainerMapping, CqlIdentifiers identifiers, KeyToListMap`2 views, EntitySetBase entity, EntityTypeBase type, ViewGenMode mode)
at System.Data.Mapping.ViewGeneration.ViewGenerator.GenerateQueryViewForSingleExtent(KeyToListMap`2 views, CqlIdentifiers identifiers, EntitySetBase entity, EntityTypeBase type, ViewGenMode mode)
at System.Data.Mapping.ViewGeneration.ViewgenGatekeeper.GenerateTypeSpecificQueryView(StorageEntityContainerMapping containerMapping, ConfigViewGenerator config, EntitySetBase entity, EntityTypeBase type, Boolean includeSubtypes, Boolean& success)
at System.Data.Mapping.StorageMappingItemCollection.ViewDictionary.TryGenerateQueryViewOfType(EntityContainer entityContainer, EntitySetBase entity, EntityTypeBase type, Boolean includeSubtypes, GeneratedView& generatedView)
at System.Data.Mapping.StorageMappingItemCollection.ViewDictionary.SerializedGeneratedViewOfType(Pair`2 arg)
at System.Data.Common.Utils.Memoizer`2.<>c__DisplayClass2.<Evaluate>b__0()
at System.Data.Common.Utils.Memoizer`2.Result.GetValue()
at System.Data.Common.Utils.Memoizer`2.Evaluate(TArg arg)
at System.Data.Mapping.StorageMappingItemCollection.ViewDictionary.TryGetGeneratedViewOfType(MetadataWorkspace workspace, EntitySetBase entity, EntityTypeBase type, Boolean includeSubtypes, GeneratedView& generatedView)
at System.Data.Metadata.Edm.MetadataWorkspace.TryGetGeneratedViewOfType(EntitySetBase extent, EntityTypeBase type, Boolean includeSubtypes, GeneratedView& generatedView)
at System.Data.Query.PlanCompiler.PreProcessor.ExpandView(Node node, ScanTableOp scanTableOp, IsOfOp& typeFilter)
at System.Data.Query.PlanCompiler.PreProcessor.ProcessScanTable(Node scanTableNode, ScanTableOp scanTableOp, IsOfOp& typeFilter)
at System.Data.Query.PlanCompiler.PreProcessor.Visit(FilterOp op, Node n)
at System.Data.Query.InternalTrees.FilterOp.Accept[TResultType](BasicOpVisitorOfT`1 v, Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfT`1.VisitNode(Node n)
at System.Data.Query.PlanCompiler.SubqueryTrackingVisitor.VisitChildren(Node n)
at System.Data.Query.PlanCompiler.SubqueryTrackingVisitor.VisitRelOpDefault(RelOp op, Node n)
at System.Data.Query.PlanCompiler.PreProcessor.Visit(ProjectOp op, Node n)
at System.Data.Query.InternalTrees.ProjectOp.Accept[TResultType](BasicOpVisitorOfT`1 v, Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfT`1.VisitNode(Node n)
at System.Data.Query.PlanCompiler.SubqueryTrackingVisitor.VisitChildren(Node n)
at System.Data.Query.PlanCompiler.SubqueryTrackingVisitor.VisitRelOpDefault(RelOp op, Node n)
at System.Data.Query.PlanCompiler.PreProcessor.Visit(ProjectOp op, Node n)
at System.Data.Query.InternalTrees.ProjectOp.Accept[TResultType](BasicOpVisitorOfT`1 v, Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfT`1.VisitNode(Node n)
at System.Data.Query.PlanCompiler.SubqueryTrackingVisitor.VisitChildren(Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfNode.VisitDefault(Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfNode.VisitPhysicalOpDefault(PhysicalOp op, Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfT`1.Visit(PhysicalProjectOp op, Node n)
at System.Data.Query.InternalTrees.PhysicalProjectOp.Accept[TResultType](BasicOpVisitorOfT`1 v, Node n)
at System.Data.Query.InternalTrees.BasicOpVisitorOfT`1.VisitNode(Node n)
at System.Data.Query.PlanCompiler.PreProcessor.Process(Dictionary`2& tvfResultKeys)
at System.Data.Query.PlanCompiler.PreProcessor.Process(PlanCompiler planCompilerState, StructuredTypeInfo& typeInfo, Dictionary`2& tvfResultKeys)
at System.Data.Query.PlanCompiler.PlanCompiler.Compile(List`1& providerCommands, ColumnMap& resultColumnMap, Int32& columnCount, Set`1& entitySets)
at System.Data.EntityClient.EntityCommandDefinition..ctor(DbProviderFactory storeProviderFactory, DbCommandTree commandTree)
起初我认为这可能是我们对枚举或其他复杂类型的新实现，但由于即使是最简单的没有关系的实体也会引发相同的错误，我感到茫然。提前感谢任何意见。