HI

I have implemented simple datatable and dataList as below but I am getting following casting exception in both case (dataTable and dataList), pls advise me.

Code:
<rich:dataTable value="Data Table" var="capitals"> <rich:column> Welcome </rich:column>
</rich:dataTable>

Exception:
Uncaught exception thrown in one of the service methods of the servlet: /echo.jsp. Exception thrown : javax.servlet.ServletException: org.ajax4jsf.component.AjaxViewRoot incompatible with javax.faces.component.UIOutput

Regards
Murugesan