I have a Java web application under Oracle Jdeveloper 10.1.3.2.0.4066. Upon trying to rebuild a jsp file placed under WEb-INF\tiles, I'm getting a compile error "TagFiles are not supported in tag library tld version 11". The error line is the directive of the jsp page <%@ taglib uri="http://struts.apache.org/tags-bean-el" prefix="bean"%>. Under WEB-INF\tags I have some unpacked tag libraries. Does this mean incompatibility between JSP, TLD and servlet versions? Is is an error in the Jdev installation or in my application? Thank you for your answer.