现在计划任务报如下错误，具体原因不详：
[qq]78925995[/qq]
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-------------帐套扫描错误------------- , System.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Server stack trace: at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning() at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity) at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, SqlConnection owningObject) at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, TimeoutTimer timeout) at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, TimeoutTimer timeout, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) at System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) at System.Data.SqlClient.SqlConnection.Open() at Kingdee.BOS.App.Data.AbstractDatabase.GetNewOpenConnection() at Kingdee.BOS.App.Data.AbstractDatabase.GetOpenConnection(Boolean disposeInnerConnection) at Kingdee.BOS.App.Data.AbstractDatabase.ExecuteReader(DbCommand command, IEnumerable`1 paramList, CommandBehavior cmdBehavior, Boolean bNewCn) at Kingdee.BOS.App.Data.AbstractDatabase.ExecuteReader(DbCommand command, IEnumerable`1 paramList, CommandBehavior cmdBehavior) at Kingdee.BOS.App.Data.DBUtils.ExecuteReader(Context ctx, String strSQL, IEnumerable`1 paramList, CommandType cmdtype, CommandBehavior cmdBehavior, Boolean bNewCn) at Kingdee.BOS.App.Data.DBUtils.ExecuteReader(Context ctx, String strSQL, IEnumerable`1 paramList, CommandType cmdtype, Boolean bNewCn) at Kingdee.BOS.App.Core.SystemParameterService.GetGetParamterXML(Context ctx, Int64 orgId, Int64 acctBookId, String parameterObjId, Int64 acctpolicyID) at Kingdee.BOS.App.Core.SystemParameterService.Load(Context ctx, Int64 orgId, Int64 acctBookId, String parameterObjId, Int64 acctpolicyID, Boolean bIsRunTime) at Kingdee.BOS.App.Core.OrganizationService.SetContextMultiOrgProperty(Context ctx) Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type) at Kingdee.BOS.Contracts.IOrganizationService.SetContextMultiOrgProperty(Context ctx) at Kingdee.BOS.App.Security.K3CloudLoginService.SetContextTimeZone(Context ctxValidate) at Kingdee.BOS.Schedule.Core.BackgroundJob.GetScheduleList() at Kingdee.BOS.Schedule.Core.BackgroundJob.ScanTimerInvoke() at Kingdee.BOS.Schedule.Core.BackgroundJob.ScanTimer_Callback(Object obj)
