hello<br>I am trying to have a partial page loading functionality in my web page. the idea is to have a main page, a side navigation panel (which needs to be partially loaded) and a main body (which too needs to be partially loaded). I am using JSF and 

netbeans5.5. i have done all the configuration needed as i found on the web(hopefully). <br>well i have run some demo application of richfaces standalone... but when tryin to merge them in my project... it gives errors. well when i tried to integrate the demo on page&nbsp; 

<b><a href="http://livedemo.exadel.com/richfaces-demo/richfaces/include.jsf?c=include">http://livedemo.exadel.com/richfaces-demo/richfaces/include.jsf?c=include</a></b> &nbsp; i got following error<br><br><br><br><p><b>type</b>

 Exception report</p><p><b>message</b> </p><p><b>description</b> <u>The server encountered an internal error () that prevented it from fulfilling this request.</u></p><p><b>exception</b> </p><pre><font size="4">org.apache.jasper.JasperException

: UIInclude component check:_id12 could&#39;t include page with path null<br>        org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)<br>        org.apache.jasper.servlet.JspServletWrapper.service

(JspServletWrapper.java:375)<br>        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)<br>        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)<br>        javax.servlet.http.HttpServlet.service(HttpServlet.java

:802)<br>        org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)<br>        com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)<br>        com.sun.faces.application.ViewHandlerImpl.renderView

(ViewHandlerImpl.java:130)<br>        org.ajax4jsf.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)<br>        org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)<br>        com.sun.faces.lifecycle.RenderResponsePhase.execute

(RenderResponsePhase.java:87)<br>        com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:200)<br>        com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)<br>        javax.faces.webapp.FacesServlet.service(FacesServlet.java

:198)<br>        org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)<br>        org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)<br>        org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java

:368)<br></font></pre><p><font size="4"><b>root cause</b></font> </p><pre><font size="4">javax.servlet.ServletException: UIInclude component check:_id12 could&#39;t include page with path null<br>        org.apache.jasper.runtime.PageContextImpl.doHandlePageException

(PageContextImpl.java:858)<br>        org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)<br>        org.apache.jsp.welcomeJSF_jsp._jspService(welcomeJSF_jsp.java:162)<br>        org.apache.jasper.runtime.HttpJspBase.service

(HttpJspBase.java:97)<br>        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br>        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)<br>        org.apache.jasper.servlet.JspServlet.serviceJspFile

(JspServlet.java:314)<br>        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)<br>        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br>        org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter

(MonitorFilter.java:368)<br>        com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)<br>        com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)<br>        org.ajax4jsf.application.ViewHandlerWrapper.renderView

(ViewHandlerWrapper.java:108)<br>        org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)<br>        com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)<br>        com.sun.faces.lifecycle.LifecycleImpl.phase

(LifecycleImpl.java:200)<br>        com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)<br>        javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)<br>        org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java

:141)<br>        org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)<br>        org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368)<br></font></pre><p><font size="4"><b>root cause</b></font> 

</p><pre><font size="4">javax.servlet.jsp.JspException: UIInclude component check:_id12 could&#39;t include page with path null<br>        org.ajax4jsf.taglib.html.jsp.IncludeTag.doStartTag(IncludeTag.java:209)<br>        org.apache.jsp.welcomeJSF_jsp._jspx_meth_a4j_include_0

(welcomeJSF_jsp.java:692)<br>        org.apache.jsp.welcomeJSF_jsp._jspx_meth_h_form_1(welcomeJSF_jsp.java:668)<br>        org.apache.jsp.welcomeJSF_jsp._jspx_meth_rich_panel_0(welcomeJSF_jsp.java:589)<br>        org.apache.jsp.welcomeJSF_jsp._jspx_meth_h_panelGrid_3

(welcomeJSF_jsp.java:509)<br>        org.apache.jsp.welcomeJSF_jsp._jspx_meth_f_view_0(welcomeJSF_jsp.java:202)<br>        org.apache.jsp.welcomeJSF_jsp._jspService(welcomeJSF_jsp.java:152)<br>        org.apache.jasper.runtime.HttpJspBase.service

(HttpJspBase.java:97)<br>        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br>        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:332)<br>        org.apache.jasper.servlet.JspServlet.serviceJspFile

(JspServlet.java:314)<br>        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)<br>        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br>        org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter

(MonitorFilter.java:368)<br>        com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:322)<br>        com.sun.faces.application.ViewHandlerImpl.renderView(ViewHandlerImpl.java:130)<br>        org.ajax4jsf.application.ViewHandlerWrapper.renderView

(ViewHandlerWrapper.java:108)<br>        org.ajax4jsf.application.AjaxViewHandler.renderView(AjaxViewHandler.java:216)<br>        com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:87)<br>        com.sun.faces.lifecycle.LifecycleImpl.phase

(LifecycleImpl.java:200)<br>        com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:117)<br>        javax.faces.webapp.FacesServlet.service(FacesServlet.java:198)<br>        org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java

:141)         org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)         org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:368) </pre> hope somebody can help...

</p><p>Thanking in advance...</p><p>Rajiv Shrestha<br><b></b></p><p><br></p><hr noshade size="1"><br>