Hi, I'm using JBoss Portal 2.6.1 in bundle with AS 4.2.1 and Oracle 10 db. I deployed my ear application, which contains (besides the WARs of my portlets) the following libraries: - commons-validator-1.3.0.jar - jakarta-oro-2.0.8.jar - joda-time-1.4.jar - jsf-facelets.jar (ver 1.1.12) - jsf-portlet.jar (ver 1.2.1) - tomahawk-1.1.6.jar After visited my portlets, If I try to access to admin portal, clicking Admin link in the dashboard nav, I have this error: | 15:27:04,828 ERROR [CommandServlet] Exception in command invocation | java.lang.LinkageError: loader constraints violated when linking javax/faces/component/UIComponent class | at java.lang.Class.forName0(Native Method) | at java.lang.Class.forName(Class.java:242) | at com.sun.facelets.compiler.ReflectionUtil.forName(ReflectionUtil.java:55) | at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.createClass(TagLibraryConfig.java:278) | at com.sun.facelets.compiler.TagLibraryConfig$LibraryHandler.endElement(TagLibraryConfig.java:205) | at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) | ... | Could you, please, help me to solve this problem? Thank you. Angelo View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4080033#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...