Thank, I get other other problems, Even I setup to output src/hot to default folder(classes). but actually I find it output both folders( classes and dev) to cause there are two seam components, how can I disbale dev folder? or it is bug? Of couse, I can remove this dev folder after deploy and release, but currently I am in the middle of developing with eclipse, need normal enviroment. Granites is open source (maybe belonging to Jboss) to communication between Seam and Flex) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4229040#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...