Two questions - Did u manually zipped the "jasperserver 3.0 export file". If so, it is not going to work. In case , you have exported the JS 3.0 data as normal directory (and not zip file ) , please try to use the alternative command to import the JS 3.0 data ./js-ant import -DimportFile="path to 3.0 data folder e.g. /home/qauser/js-3.0-export" -DimportArgs="--update" Hope this helps, - 1 tested jasperserver 3.0 -> 3.5 upgrade as part of qa testing at jaspersoft.and it worked smoothly for me as we follow the Install guide instructions. ramnik