I am trying to Export data from a geodatabase by a existed sde file(created by ArcCatalog), the Error Messges:
Executing: ExportCAD 'DataBase Connections\Connection to GIS-WANG.sde\SDE.water\SDE.ControlValve' DWG_R2010 D:\117.DWG Ignore_Filenames_in_Tables Overwrite_Existing_Files # Start Time: Thu Oct 13 16:46:59 2011 ERROR 000622: Failed to execute (ExportCAD). Parameters are not valid. ERROR 000732: Input Features: Dataset 'DataBase Connections\Connection to GIS-WANG.sde\SDE.water\SDE.ControlValve' does not exist or is not supported Failed to execute (ExportCAD). Failed at Thu Oct 13 16:46:59 2011 (Elapsed Time: 0.00 seconds)
Why "DataBase Connections" mapped to "Dataset DataBase Connections"?