Today I encountered the same EL linkage error. It turned out to be (partly) a myeclipse issue. When you add JSF / Facelets support the facelets libary is automatically added to your web project. Myeclipse will copy the jars of this library into your WEB-INF/lib directory on deployment. And guess what: It contains el-ri library... So, just remove the MyEclipse Faclets library from your web project and redeploy. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4077509#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...