Jsf + richfaces + message (não mostra)

Front-end
#1

Boa Tarde, Pessoal!

Estou fazendo um mini cadastro e preciso validar se os 2 campos foram preenchidos.
Coloquei o requerid = true e o h:message, porém a mensagem de validação não aparece e no console mostra a seguinte mensagem:
“ERROR [HtmlResponseStateManager] No component states to be saved in client response!”

Segue o código.

[code]<!doctype html public “-//w3c//dtd html 4.0 transitional//en”>
<%@ taglib uri=“http://java.sun.com/jsf/core” prefix=“f” %>
<%@ taglib uri=“http://java.sun.com/jsf/html” prefix=“h” %>

<%@ taglib uri=“http://richfaces.org/a4j” prefix=“a4j”%>
<%@ taglib uri=“http://richfaces.org/rich” prefix=“rich”%>

Disparador E-mail Private 
     <style type="text/css">
      .btn {
      	width:80px;
      	height:25px;
      	font-size: 11px; 
       	font-family: arial,sans-serif; 
       	font-weight:bold;
       	cursor:  pointer;
       	text-align: center; 
       	
       	border-top-width: 0px;
       	border-right-width: 0px;
       	border-bottom-width: 0px;
       	border-left-width: 0px; 
      } 
      
      .inputText {
      	width:300px;
      	height:20px;
      	font-size: 11px; 
       	font-family: arial,sans-serif;           	
       	text-align: left; 
       	
       	border-top-width: 0px;
       	border-right-width: 0px;
       	border-bottom-width: 0px;
       	border-left-width: 0px; 
       	           	
       	border-top-color:#E6E8FA;
        border-right-color:#E6E8FA;
        border-bottom-color:#E6E8FA;
        border-left-color:#E6E8FA;
        background-color: #E6E8FA;
      } 
      
      .outputText {          
      	font-size: 11px; 
       	font-family: arial,sans-serif; 
       	font-weight:bold;       
      } 
      
       .rich-painel {
        border-top-color:#dfa5a5;
        border-right-color:#dfa5a5;
        border-bottom-color:#dfa5a5;
        border-left-color:#dfa5a5;
        background-color: rgb(248, 236, 236);
       }
       
       .rich-painel-header {
        border-top-color:#dfa5a5;
        border-right-color:#dfa5a5;
        border-bottom-color:#dfa5a5;
        border-left-color:#dfa5a5;
        background-color: rgb(248, 236, 236);
       }  
       
       .col1 { width: 40px; }
       .col2 { width: 150px; }
       .col3 { width: 150px; }
    
     }
      
     </style>
          
     <f:view>
     <h:form>
          
       <rich:panel header="Cadastro de Remetentes - Incluir" style="width: 625px"  >
       <h:messages errorStyle="color:red" infoStyle="color:#5ac67e"  />
       <h:panelGrid columns="3" columnClasses="col1, col2, col3">

       	 <h:outputText value="Nome:" styleClass="outputText"/>    
       	 <h:inputText id="nome" value=" " styleClass="inputText" required="true" />
         <h:message for="nome"/>
                     	 
       	 <h:outputText value="Email:" styleClass="outputText"/>   
       	 <h:inputText id="email" value=" " styleClass="inputText" required="true" /> 
       	 <h:message for="email" /> 
       	            	 
       </h:panelGrid>
       	  	   
    	 <h:panelGrid columns="2">
    	 	<h:commandButton value="Salvar" styleClass="btn" />
       	 	<h:commandButton value="Cancelar" styleClass="btn" /> 
    	 </h:panelGrid>
    
       </rich:panel>
     </h:form>  
        
     </f:view>          
  </body>
[/code]

Agradeço desde já pela ajuda!

#2