Hello, I have a web application that I can deploy on GlassFish with no problems, but when I attempt to deploy on JBoss4.2 I get this error: 08:45:25,490 FATAL [application] JSF1029: The specified InjectionProvider implementation 'org.jboss.web.jsf.integration.injection.JBossInjectionProvider' does not implement the InjectionProvider interface. | 08:45:25,492 INFO [application] JSF1048: PostConstruct/PreDestroy annotations present. ManagedBeans methods marked with these annotations will have said annotations processed. | 08:45:25,822 ERROR [[/LoginV1]] Exception sending context initialized event to listener instance of class org.jboss.web.jsf.integration.config.JBossJSFConfigureListener | java.lang.ClassCastException: com.sun.faces.config.WebConfiguration | Code someone help me out? TK View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4117054#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...