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在NHibernate上运行了4年以上的网站。我们最近将网站移至Windows Server 2012计算机，并将NHibernate更新至3.3。 有关新服务器上的一个月后，我们开始看到以下例外创建代理实例失败，出现COMException（IIS，Windows Server 2012，NHibernate）
NHibernate.HibernateException: Creating a proxy instance failed ---> System.Runtime.InteropServices.COMException: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(RuntimeAssembly containingAssembly, Boolean emitSymbolInfo, String name, String filename, StackCrawlMarkHandle stackMark, IntPtr& pInternalSymWriter, ObjectHandleOnStack retModule, Boolean fIsTransient, Int32& tkFile)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternalNoLock(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternal(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, String fileName, Boolean emitSymbolInfo)
的应用程序池重新启动解决了这个问题了一会儿。
它每周大约发生一次，它每次都会影响不同的实体，并且该网站的其他部分（也使用NHibernate）会继续工作。
全部低于堆栈跟踪：
NHibernate.HibernateException: Creating a proxy instance failed ---> System.Runtime.InteropServices.COMException: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(RuntimeAssembly containingAssembly, Boolean emitSymbolInfo, String name, String filename, StackCrawlMarkHandle stackMark, IntPtr& pInternalSymWriter, ObjectHandleOnStack retModule, Boolean fIsTransient, Int32& tkFile)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternalNoLock(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModuleInternal(String name, String fileName, Boolean emitSymbolInfo, StackCrawlMark& stackMark)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, String fileName, Boolean emitSymbolInfo)
at NHibernate.Proxy.DynamicProxy.DefaultProxyAssemblyBuilder.DefineDynamicModule(AssemblyBuilder assemblyBuilder, String moduleName)
at NHibernate.Proxy.DynamicProxy.ProxyFactory.CreateUncachedProxyType(Type baseType, Type[] baseInterfaces)
at NHibernate.Proxy.DynamicProxy.ProxyFactory.CreateProxyType(Type baseType, Type[] interfaces)
at NHibernate.Proxy.DynamicProxy.ProxyFactory.CreateProxy(Type instanceType, IInterceptor interceptor, Type[] baseInterfaces)
at NHibernate.Proxy.DefaultProxyFactory.GetProxy(Object id, ISessionImplementor session)
--- End of inner exception stack trace ---
at NHibernate.Proxy.DefaultProxyFactory.GetProxy(Object id, ISessionImplementor session)
at NHibernate.Tuple.Entity.AbstractEntityTuplizer.CreateProxy(Object id, ISessionImplementor session)
at NHibernate.Persister.Entity.AbstractEntityPersister.CreateProxy(Object id, ISessionImplementor session)
at NHibernate.Event.Default.DefaultLoadEventListener.CreateProxyIfNecessary(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options, IPersistenceContext persistenceContext)
at NHibernate.Event.Default.DefaultLoadEventListener.ProxyOrLoad(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options)
at NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, LoadType loadType)
at NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType loadType)
at NHibernate.Impl.SessionImpl.InternalLoad(String entityName, Object id, Boolean eager, Boolean isNullable)
at NHibernate.Type.EntityType.ResolveIdentifier(Object id, ISessionImplementor session)
at NHibernate.Type.EntityType.ResolveIdentifier(Object value, ISessionImplementor session, Object owner)
at NHibernate.Engine.TwoPhaseLoad.InitializeEntity(Object entity, Boolean readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent)
at NHibernate.Loader.Loader.InitializeEntitiesAndCollections(IList hydratedObjects, Object resultSetId, ISessionImplementor session, Boolean readOnly)
at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
at NHibernate.Loader.Loader.LoadCollection(ISessionImplementor session, Object id, IType type)
at NHibernate.Loader.Collection.CollectionLoader.Initialize(Object id, ISessionImplementor session)
at NHibernate.Persister.Collection.AbstractCollectionPersister.Initialize(Object key, ISessionImplementor session)
at NHibernate.Event.Default.DefaultInitializeCollectionEventListener.OnInitializeCollection(InitializeCollectionEvent event)
at NHibernate.Impl.SessionImpl.InitializeCollection(IPersistentCollection collection, Boolean writing)
at NHibernate.Collection.AbstractPersistentCollection.Initialize(Boolean writing)
at NHibernate.Collection.AbstractPersistentCollection.Read()
at NHibernate.Collection.Generic.PersistentGenericBag`1.System.Collections.Generic.IEnumerable.GetEnumerator()
at XXX.YYY.Services.FluentMdx.Queries.PrioMatrixQuery.SetupDimensionCollector(IDimensionCollector dimensionCollector)
at lambda_method(Closure , ControllerBase , Object[])
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.b__12()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) at NHibernate.Proxy.DefaultProxyFactory.GetProxy(Object id, ISessionImplementor session)
at NHibernate.Tuple.Entity.AbstractEntityTuplizer.CreateProxy(Object id, ISessionImplementor session)
at NHibernate.Persister.Entity.AbstractEntityPersister.CreateProxy(Object id, ISessionImplementor session)
at NHibernate.Event.Default.DefaultLoadEventListener.CreateProxyIfNecessary(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options, IPersistenceContext persistenceContext)
at NHibernate.Event.Default.DefaultLoadEventListener.ProxyOrLoad(LoadEvent event, IEntityPersister persister, EntityKey keyToLoad, LoadType options)
at NHibernate.Event.Default.DefaultLoadEventListener.OnLoad(LoadEvent event, LoadType loadType)
at NHibernate.Impl.SessionImpl.FireLoad(LoadEvent event, LoadType loadType)
at NHibernate.Impl.SessionImpl.InternalLoad(String entityName, Object id, Boolean eager, Boolean isNullable)
at NHibernate.Type.EntityType.ResolveIdentifier(Object id, ISessionImplementor session)
at NHibernate.Type.EntityType.ResolveIdentifier(Object value, ISessionImplementor session, Object owner)
at NHibernate.Engine.TwoPhaseLoad.InitializeEntity(Object entity, Boolean readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent)
at NHibernate.Loader.Loader.InitializeEntitiesAndCollections(IList hydratedObjects, Object resultSetId, ISessionImplementor session, Boolean readOnly)
at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
at NHibernate.Loader.Loader.LoadCollection(ISessionImplementor session, Object id, IType type)
at NHibernate.Loader.Collection.CollectionLoader.Initialize(Object id, ISessionImplementor session)
at NHibernate.Persister.Collection.AbstractCollectionPersister.Initialize(Object key, ISessionImplementor session)
at NHibernate.Event.Default.DefaultInitializeCollectionEventListener.OnInitializeCollection(InitializeCollectionEvent event)
at NHibernate.Impl.SessionImpl.InitializeCollection(IPersistentCollection collection, Boolean writing)
at NHibernate.Collection.AbstractPersistentCollection.Initialize(Boolean writing)
at NHibernate.Collection.AbstractPersistentCollection.Read()
at NHibernate.Collection.Generic.PersistentGenericBag`1.System.Collections.Generic.IEnumerable.GetEnumerator()
at XXX.YYY.Services.FluentMdx.Queries.PrioMatrixQuery.SetupDimensionCollector(IDimensionCollector dimensionCollector)
at XXX.YYY.Services.FluentMdx.Queries.QueryBuilder.b__1(IDimensionCollector x)
at XXX.YYY.Services.FluentMdx.Queries.QueryBuilder.BuildQuery(IFluentMdxFilterCommand mdxFilterQueryCommand)
at XXX.YYY.Services.FluentMdx.FluentMdxRepository.ExecuteQuery(IMdxQueryBuilder mdxQueryBuilder)
at XXX.YYY.Services.Result.PrioMatrixRenderService.GetChartEngine(IReadOnlyQuerySettings querySettings, ChartSettingsModel settingsModel)
at XXX.YYY.MVC.Controllers.PrioMatrixRenderController.RenderChart(QuerySettings queryable, ChartSettingsModel chartSettings)
at lambda_method(Closure , ControllerBase , Object[])
at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.b__12()
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)
@Tico，未来，请使用'>'格式化错误，所有文字都在屏幕上而不滚动。 – gunr2171
@ gunr2171非常感谢您的支持！ – Tico
你会不会碰巧抱怨CLSID？ –