[jboss-user] [JBoss Seam] - Getting a runtime exception while deploying app.

Hi, apologies if the question is silly.. I am new to seam and trying to create my own application using seam. . Whenever i deploy the application, i get the following runtime exception.. Any ideas what jar i am missing referring to? exception javax.servlet.ServletException: Servlet execution threw an exception org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause java.lang.NoClassDefFoundError: org/jboss/el/lang/EvaluationContext org.jboss.seam.jsf.SeamApplication.getExpressionFactory(SeamApplication.java:346) com.sun.facelets.compiler.Compiler.createExpressionFactory(Compiler.java:131) com.sun.facelets.impl.DefaultFaceletFactory.createFacelet(DefaultFaceletFactory.java:198) com.sun.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:144) com.sun.facelets.impl.DefaultFaceletFactory.getFacelet(DefaultFaceletFactory.java:95) com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:517) com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:567) com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144) javax.faces.webapp.FacesServlet.service(FacesServlet.java:245) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4093551#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...