HELP me iam using weblogic 7.0?

iam using weblogic 7.0 , when i tried to make my jar(ejb-jar and weblogic-ejb-jar) files for my ejb with weblogic builder , i have getting the error no j2ee components found , i placed all classes like , bean, remote and home class in a folder and open this with weblogic builder , this time i have getting the above said error , why is it , any one please help me , please .........