Telerik.OpenAccess.OpenAccessException未被用戶代碼處理

以下是我收到的錯誤。請幫助。Telerik.OpenAccess.OpenAccessException未被用戶代碼處理

Telerik.OpenAccess.OpenAccessException was unhandled by user code 
    Message=No metadata has been registered for class Ind.Data.IndiStage.Academy. (This usually indicates, that either this class is not declared persistent or it is declared persistent but not enhanced. The class was loaded from file:///C:/Users/suresh/Documents/WorkSpace/Ind_folder/Ind.ETLService/bin/Release/Ind.Data.IndiStage.DLL.) 
    Source=Telerik.OpenAccess 
    CanRetry=true 
    StackTrace: 
     at Telerik.OpenAccess.SPI.Backends.ThrowException(Exception e) 
     at OpenAccessRuntime.ExceptionWrapper.Throw() 
     at OpenAccessRuntime.storagemanager.StorageManagerFactoryBuilder.createSmfForURL() 
     at OpenAccessRuntime.storagemanager.StorageManagerFactoryBuilder.createStorageManagerFactory() 
     at OpenAccessRuntime.DataObjects.PersistenceManagerFactoryImp.createStorageManagerFactory() 
     at OpenAccessRuntime.DataObjects.PersistenceManagerFactoryBase.init() 
     at OpenAccessRuntime.DataObjects.PersistenceManagerFactoryImp.init() 
     at OpenAccessRuntime.DataObjects.PersistenceManagerFactoryImp..ctor(PropertySet properties, Object classloader) 
     at OpenAccessRuntime.DataObjects.PersistenceManagerFactoryImp.getPersistenceManagerFactory(PropertySet props) 
     at OpenAccessRuntime.DataObjects.BootstrapPMF.getPersistenceManagerFactory(PropertySet props) 
     at OpenAccessRuntime.Helper.getPersistenceManagerFactory(PropertySet props) 
     at OpenAccessRuntime.DatabaseAdapter.AssertPersistenceManagerFactory(String usr, String password, Boolean open) 
     at OpenAccessRuntime.DatabaseAdapter.GetObjectScope(TransactionProvider provider) 
     at Telerik.OpenAccess.Database.GetObjectScope(TransactionProvider provider) 
     at Telerik.OpenAccess.OpenAccessContextBase.GetScope() 
     at Telerik.OpenAccess.OpenAccessContext.GetAllCore[T]() 
     at Telerik.OpenAccess.OpenAccessContext.GetAll[T]() 
     at System.Timers.Timer.MyTimerCallback(Object state) 
    InnerException:

來源

2012-07-17 suresh

更多信息。你有沒有嘗試在學院課程中添加「元數據」？它沒有被宣佈爲持久性的，還是持久的，但沒有被強化？從探索錯誤消息開始尋求合理的解決方案。 – IanGilham 2012-07-17 15:04:31

謝謝lanGilham。 – suresh 2012-07-18 08:56:49