error in migrating struts 1.1 application

[kavitha_...@infosys.com]

when i tried to migrate struts 1.1 portlet framework application(version 5.1) which was developed in wps 6.0 to wps 6.1. i am getting an error like
SRVE0068E: Uncaught exception thrown in one of the service methods of the servlet: /AccountSummary/html/view/index.jsp. Exception thrown : javax.servlet.ServletException: Exception forwarding for name welcome: javax.servlet.ServletException: com.ibm.ws.portletcontainer.core.rd.impl.IncludedServletRequestImpl incompatible with javax.portlet.RenderRequest
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:660)
at com.ibm._jsp._index._jspService(_index.java:83)
at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:87)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1095)
at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1036)
Please help me to fix this.
Thanks in advance!

[dec...@us.ibm.com]

Good afternoon,

It may be prudent to visit this link first...
http://www.ibm.com/developerworks/websphere/techjournal/0403_yu/0403_yu.html?ca=dnl-portnl

when moving from 6.0 to 6.1 you will need to update the JARs in the WAR with ones from the Struts samples shipped with 6.1

Thanks.
Tim