ok i understood and i solved the problem.i did this on another hard disk that i have without any problem. So,everything is ok.thank you for your help. -- View this message in context: http://osgeo-org.1560.n6.nabble.com/Error-in-creating-gml-file-tp4669016p4671470.html Sent from the GDAL - Dev mailing list archive at Nabble.com.