APPLICATION ERROR

Выдано исключение типа "System.Web.HttpUnhandledException".Oracle.ManagedDataAccess.Client.OracleException (0x80004005): ORA-12514: TNS:listener does not currently know of service requested in connect descriptor ---> OracleInternal.Network.NetworkException (0x000030E2): ORA-12514: TNS:listener does not currently know of service requested in connect descriptor в OracleInternal.Network.OracleCommunication.DoConnect(String tnsDescriptor) в OracleInternal.Network.OracleCommunication.Connect(String tnsDescriptor, Boolean doNAHandshake, String IName, ConnectionOption CO) в OracleInternal.ServiceObjects.OracleConnectionImpl.Connect(ConnectionString cs, Boolean bOpenEndUserSession, OracleConnection connRefForCriteria, String instanceName) в OracleInternal.ConnectionPool.PoolManager`3.Get(ConnectionString csWithDiffOrNewPwd, Boolean bGetForApp, OracleConnection connRefForCriteria, String affinityInstanceName, Boolean bForceMatch) в OracleInternal.ConnectionPool.OraclePoolManager.Get(ConnectionString csWithNewPassword, Boolean bGetForApp, OracleConnection connRefForCriteria, String affinityInstanceName, Boolean bForceMatch) в OracleInternal.ConnectionPool.OracleConnectionDispenser`3.Get(ConnectionString cs, PM conPM, ConnectionString pmCS, SecureString securedPassword, SecureString securedProxyPassword, OracleConnection connRefForCriteria) в Oracle.ManagedDataAccess.Client.OracleConnection.Open() в OpenGkh.Library.XmlDbRepository.OpenConnection() в D:\__SOURCE\OPENGKH\OpenGkh\OpenGkh.Library\XmlDbRepository.cs:строка 151 в OpenGkh.Library.XmlDbRepository.ProcDb(String proc, String userId, List`1 inParams) в D:\__SOURCE\OPENGKH\OpenGkh\OpenGkh.Library\XmlDbRepository.cs:строка 176 в OpenGkh.Library.XmlDbRepository.ProcDbxml(String proc, String userId, List`1 inParams) в D:\__SOURCE\OPENGKH\OpenGkh\OpenGkh.Library\XmlDbRepository.cs:строка 70 в OpenGkh.Web.aspx.applications.ApplicationsList.Page_Load(Object sender, EventArgs e) в D:\__SOURCE\OPENGKH\OpenGkh\OpenGkh.Web\aspx\applications\applications_list.aspx.cs:строка 50 в System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) в System.Web.UI.Control.OnLoad(EventArgs e) в System.Web.UI.Control.LoadRecursive() в System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)