Hello Alain, its a classloader problem. I solved it by deleting the myfaces.jars from the projects lib folder. Another myfaces.jar is located under C:\appservers\bsp\jboss\server\bsp\deploy\jbossweb-tomcat55.sar\jsf-libs its used for the tomcat administration and contains a faces config which declares the RepeatRenderer. i changed these jars to the myfaces 1.1.4 snapshot jars. hope this helps Daniel View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3970670#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...