Foro de programacion

Vamos a ver al cargar, mi página index.jsp de mi web. se me cargan algunas cosas y
otras me sale el siguiente error:
[ServletException in:/includes/admin_menu.jsp] Cannot create rewrite URL: java.net.MalformedURLException: Cannot retrieve ActionForward named listarProyectos' javax.servlet.jsp.JspException: Cannot create rewrite URL: java.net.MalformedURLException: Cannot retrieve ActionForward named listarProyectos at org.apache.struts.taglib.html.LinkTag.calculateURL (LinkTag.java:499) at org.apache.struts.taglib.html.LinkTag.doStartTag(L inkTag.java:353) at org.apache.jsp.admin_menu_jsp._jspx_meth_html_link _13(admin_menu_jsp.java:603) at org.apache.jsp.admin_menu_jsp._jspService(admin_me nu_jsp.java:152) at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:92) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:162) at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:240) at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:187) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.catalina.core.ApplicationDispatcher.inv oke(ApplicationDispatcher.java:627) at org.apache.catalina.core.ApplicationDispatcher.doI nclude(ApplicationDispatcher.java:518) at org.apache.catalina.core.ApplicationDispatcher.inc lude(ApplicationDispatcher.java:448) at org.apache.jasper.runtime.JspRuntimeLibrary.includ e(JspRuntimeLibrary.java:768) at org.apache.jasper.runtime.PageContextImpl.include( PageContextImpl.java:359) at org.apache.struts.tiles.TilesUtilImpl.doInclude(Ti lesUtilImpl.java:137) at org.apache.struts.tiles.TilesUtil.doInclude(TilesU til.java:177) at org.apache.struts.taglib.tiles.InsertTag.doInclude (InsertTag.java:756) at org.apache.struts.taglib.tiles.InsertTag$InsertHan dler.doEndTag(InsertTag.java:881) at org.apache.struts.taglib.tiles.InsertTag.doEndTag( InsertTag.java:473) at org.apache.jsp.admin_template_jsp._jspx_meth_tiles _insert_1(admin_template_jsp.java:199) at org.apache.jsp.admin_template_jsp._jspService(admi n_template_jsp.java:109) at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:92) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:162) at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:240) at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:187) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.catalina.core.ApplicationDispatcher.inv oke(ApplicationDispatcher.java:627) at org.apache.catalina.core.ApplicationDispatcher.doI nclude(ApplicationDispatcher.java:518) at org.apache.catalina.core.ApplicationDispatcher.inc lude(ApplicationDispatcher.java:448) at org.apache.jasper.runtime.JspRuntimeLibrary.includ e(JspRuntimeLibrary.java:768) at org.apache.jasper.runtime.PageContextImpl.include( PageContextImpl.java:359) at org.apache.struts.tiles.TilesUtilImpl.doInclude(Ti lesUtilImpl.java:137) at org.apache.struts.tiles.TilesUtil.doInclude(TilesU til.java:177) at org.apache.struts.taglib.tiles.InsertTag.doInclude (InsertTag.java:756) at org.apache.struts.taglib.tiles.InsertTag$InsertHan dler.doEndTag(InsertTag.java:881) at org.apache.struts.taglib.tiles.InsertTag.doEndTag( InsertTag.java:473) at org.apache.jsp.inicio_jsp._jspx_meth_tiles_insert_ 0(inicio_jsp.java:133) at org.apache.jsp.inicio_jsp._jspService(inicio_jsp.j ava:75) at org.apache.jasper.runtime.HttpJspBase.service(Http JspBase.java:92) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.jasper.servlet.JspServletWrapper.servic e(JspServletWrapper.java:162) at org.apache.jasper.servlet.JspServlet.serviceJspFil e(JspServlet.java:240) at org.apache.jasper.servlet.JspServlet.service(JspSe rvlet.java:187) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.catalina.core.ApplicationDispatcher.inv oke(ApplicationDispatcher.java:627) at org.apache.catalina.core.ApplicationDispatcher.doF orward(ApplicationDispatcher.java:382) at org.apache.catalina.core.ApplicationDispatcher.for ward(ApplicationDispatcher.java:306) at org.apache.struts.action.RequestProcessor.doForwar d(RequestProcessor.java:1069) at org.apache.struts.action.RequestProcessor.processF orwardConfig(RequestProcessor.java:455) at org.apache.struts.action.RequestProcessor.process( RequestProcessor.java:279) at org.apache.struts.action.ActionServlet.process(Act ionServlet.java:1482) at org.apache.struts.action.ActionServlet.doPost(Acti onServlet.java:525) at javax.servlet.http.HttpServlet.service(HttpServlet .java:716) at javax.servlet.http.HttpServlet.service(HttpServlet .java:809) at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:200) at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:146) at org.displaytag.filter.ResponseOverrideFilter.doFil ter(ResponseOverrideFilter.java:86) at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:146) at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:209) at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596) at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433) at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:948) at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:144) at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596) at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433) at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:948) at org.apache.catalina.core.StandardContext.invoke(St andardContext.java:2358) at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:133) at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596) at org.apache.catalina.valves.ErrorDispatcherValve.in voke(ErrorDispatcherValve.java:118) at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:594) at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:116) at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:594) at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433) at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:948) at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:127) at org.apache.catalina.core.StandardPipeline$Standard PipelineValveContext.invokeNext(StandardPipeline.j ava:596) at org.apache.catalina.core.StandardPipeline.invoke(S tandardPipeline.java:433) at org.apache.catalina.core.ContainerBase.invoke(Cont ainerBase.java:948) at org.apache.coyote.tomcat4.CoyoteAdapter.service(Co yoteAdapter.java:152) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyo teHandler.java:300) at org.apache.jk.common.HandlerRequest.invoke(Handler Request.java:374) at org.apache.jk.common.ChannelSocket.invoke(ChannelS ocket.java:743) at org.apache.jk.common.ChannelSocket.processConnecti on(ChannelSocket.java:675) at org.apache.jk.common.SocketConnection.runIt(Channe lSocket.java:866) at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:683) at java.lang.Thread.run(Unknown Source)

alguien sabe que ocurre?

Muchas gracias de antemano, chaito