Forward to a JSP page

Hi to all.
I'm developping  a Web Application with Visual Web JSF Pages..
I've two files  page1  and  errorPage created with
    New file
        JavaServerFaces
              Visual Web JSF Pages
         
The JSP file of page1  contain a statement
      if ( condition = true)
            {
         <jsp:forward page="pageError.jsp"/>
  }

but the Tomcat log reports a error
Caused by: org.apache.jasper.JasperException: An exception occurred 
processing JSP page /Start.jsp at line 9

6: -->
7: <jsp:root version="2.1" xmlns:f="http://java.sun.com/jsf/core" 
xmlns:h="http://java.sun.com/jsf/html" 
xmlns:jsp="http://java.sun.com/JSP/Page" 
xmlns:webuijsf="http://www.sun.com/webui/webuijsf">
8:     <jsp:directive.page contentType="text/html;charset=UTF-8" 
pageEncoding="UTF-8" buffer="none" language="java"/>
9:     <jsp:forward page="pageError.jsp"/>
10:   

With a normal JSP file
New File
    web
       JSP
all is oK.

Tx in advanced.

Arturo Mazzi