Erro jsf

Preciso de ajuda referente ao erro (que está comentado) abaixo.

Valeu.

   1. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"   
   2.           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
   3. <html xmlns="http://www.w3.org/1999/xhtml"  
   4.     xmlns:ui="http://java.sun.com/jsf/facelets"        // Neste trecho tem o seguinte warning: NSL missing message: CANNOT_FIND_FACELET_TAGLIB in:  
   5.     xmlns:h="http://java.sun.com/jsf/html"              //  org.eclipse.jst.jsf.core.validation.internal.facelet.messages  
   6.     xmlns:f="http://java.sun.com/jsf/core"               // O mesmo erro em: xml:ui, h, f, p  
   7.     xmlns:p="http://primefaces.prime.com.tr/ui">  
   8.   
   9. <f:view contentType="text/html">  
  10.     <h:head>  
  11.         <title><ui:insert name="title">Default title</ui:insert></title>  
  12.         <link type="text/css" rel="stylesheet"  
  13.             href="#{request.contextPath}/css/blitzer/skin.css" />  
  14.     </h:head>  
  15.   
  16.     <h:body>  
  17.         <p:panel>  
  18.             <h:form>  
  19.   
  20.                 <div id="header"><ui:insert name="header">  
  21.                     <ui:include src="/pages/comum/header.xhtml" />  
  22.                 </ui:insert></div>  
  23.   
  24.   
  25.                 <div id="content"><ui:insert name="content">  
  26.         Content area.  See comments below this line in the source.  
  27.         <!--  include your content file or uncomment the include below and create content.xhtml in this directory -->  
  28.                     <!-- <div> -->  
  29.                     <!-- <ui:include src="content.xhtml"/> -->  
  30.                     <!-- </div> -->  
  31.                 </ui:insert></div>  
  32.   
  33.                 <div id="footer"><ui:insert name="footer">  
  34.         Footer area.  See comments below this line in the source.  
  35.         <!--  include your header file or uncomment the include below and create footer.xhtml in this directory -->  
  36.                     <!--<ui:include src="footer.xhtml"/>  -->  
  37.                 </ui:insert></div>  
  38.             </h:form>  
  39.         </p:panel>  
  40.     </h:body>  
  41. </f:view>  
  42. </html>  

Não duplique tópicos!
Continue a discussão aqui: http://www.guj.com.br/posts/list/224513.java