The design file NAME.rptdesign has error and can not be run.

Hi guys, I'm trying to run a Birt report and i get the following error: "The design file NAME.rptdesign has error and can not be run." The problem is that when i run the same report in eclipse enviroment it works successfully and there is no error or warning, then i go to the server and pufff!!! By the way, i'm using birt-report-designer-all-in-one-2.1.3, geronimo-tomcat6-jee5-2.0-M2 and jre1.5.0_13. I'm new to Birt so i don't know if some configuration is missing or if i need to use differents versions because these one are not compatible. Thanks.