Será que alguem poderia me ajudar estou tentando desenvolver um pequeno projeto para cadastro de alunos e esta dando esse erro .
Obrigado
javax.servlet.ServletException: class org.richfaces.component.html.HtmlDatascroller (id="j_id_jsp_288082420_12") did not find parent form.
javax.faces.webapp.FacesServlet.service(FacesServlet.java:249)
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:141)
org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:281)
<%@ 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/rich" prefix="rich"%>
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<html>
<head>
<title> Listagem de Alunos</title>
<link href="css/estilo.css" rel="stylesheet" type="text/css">
</head>
<body>
<f:view>
<h:outputText styleClass="title" value="Listagem de Alunos" /><br><br>
<rich:dataTable id="alunos" border="1" value="#{alunoBean.lista}" var="a" rendered="#{not empty alunoBean.lista}" rows="10">
<h:column>
<f:facet name="header" >
<h:outputText value="Id" />
</f:facet>
<h:outputText value="#{a.id}" />
</h:column>
<h:column>
<f:facet name="header" >
<h:outputText value="Nome" />
</f:facet>
<h:outputText value="#{a.nome}" />
</h:column>
<h:column>
<f:facet name="header" >
<h:outputText value =" Idade" />
</f:facet>
<h:outputText value="#{a.idade}" />
</h:column>
<f:facet name="footer" >
<rich:datascroller />
</f:facet>
</rich:dataTable>
</f:view>
</body>
</html>
