Bonjour.
Je m'arrache les cheveux depuis quelques temps sur le problème suivant :
Contexte :
- Struts 2.0.7
- Struts 2 Tiles plugin - 2.0.7
- Tiles-API 2.0 20070207
- Tiles-Core 2.0 20070207
- Tomcat 5.5.20
- Windows XP pro.
- JDK 1.5.0_11

Le fichier web.xml :
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<context-param>
	<param-name>definitions-config</param-name>
	<param-value>/WEB-INF/tiles.xml</param-value>
</context-param>
<listener>
    	<display-name>Tiles Listener</display-name>
	<listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class>
</listener>
Le fichier Tiles.xml (/WEB-INF/tiles.xml)
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...
	<definition name="default" template="/WEB-INF/templates/template.jsp">
		<put-attribute name="title" value="Default template"/>
		<put-attribute name="header" value="/WEB-INF/atoms/header-default.jsp"/>
		<put-attribute name="banner" value="/WEB-INF/atoms/banner-default.jsp"/>
		<put-attribute name="menu" value="/WEB-INF/atoms/menu-default.jsp"/>
		<put-attribute name="main" value="/WEB-INF/atoms/main-null.jsp"/>
		<put-attribute name="footer" value="/WEB-INF/atoms/footer-default.jsp"/>
	</definition>
	<definition name="index" extends="default">
		<put-attribute name="title" type="definition" value="Index page"/>
		<put-attribute name="header" type="definition" value="/WEB-INF/atoms/header-default.jsp"/>
		<put-attribute name="banner" type="definition" value="/WEB-INF/atoms/banner-default.jsp"/>
		<put-attribute name="menu" type="definition" value="/WEB-INF/atoms/menu-default.jsp"/>
		<put-attribute name="main" type="definition" value="/WEB-INF/atoms/main-default.jsp"/>
		<put-attribute name="footer" type="definition" value="/WEB-INF/atoms/footer-default.jsp"/>
	</definition>
...
Le fichier template.jsp (/WEB-INF/templates/template.jsp)
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<%@ taglib prefix="s" uri="/struts-tags" %>
<%@ taglib prefix="tiles" uri="/WEB-INF/tiles-core.tld" %>
<s:url id="style" value="/css/style.css" />
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
  	<s:head theme="xhtml" debug="false"/>
	<meta http-equiv="pragma" content="no-cache">
	<meta http-equiv="cache-control" content="no-cache">
	<meta http-equiv="expires" content="0">
	<meta http-equiv="description" content="This is my page">
	<link rel="stylesheet" type="text/css" href="${style}">
  </head>
  <body>
	<div class="containeur">
		<h1>Doh!</h1>
		<h2><tiles:insertAttribute name="title"/></h2>
		<tiles:insertAttribute name="header"/>
		<tiles:insertAttribute name="banner"/>
		<tiles:insertAttribute name="menu"/>
		<tiles:insertAttribute name="main"/>
		<tiles:insertAttribute name="footer"/>
	</div>
  </body>
</html>
Et quand j'appelle une action qui me renvoie vers le tiles index, j'ai une erreur comme celle-ci pour chaque insertion :
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10 avr. 2007 16:19:59 org.apache.tiles.taglib.ContainerTagSupport doEndTag
GRAVE: Error executing tag: Attribute 'title' not found.
org.apache.tiles.TilesException: Attribute 'title' not found.
	at org.apache.tiles.taglib.InsertAttributeTag.render(InsertAttributeTag.java:93)
	at org.apache.tiles.taglib.RenderTagSupport.execute(RenderTagSupport.java:122)
	at org.apache.tiles.taglib.ContainerTagSupport.doEndTag(ContainerTagSupport.java:80)
	at org.apache.jsp.WEB_002dINF.templates.be_jsp._jspx_meth_tiles_insertAttribute_0(be_jsp.java:176)
	at org.apache.jsp.WEB_002dINF.templates.be_jsp._jspService(be_jsp.java:88)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
	at org.apache.tiles.context.servlet.ServletTilesRequestContext.include(ServletTilesRequestContext.java:181)
	at org.apache.tiles.context.TilesRequestContextWrapper.include(TilesRequestContextWrapper.java:64)
	at org.apache.struts2.tiles.StrutsTilesRequestContext.include(StrutsTilesRequestContext.java:120)
	at org.apache.struts2.tiles.StrutsTilesRequestContext.dispatch(StrutsTilesRequestContext.java:83)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:395)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:345)
	at org.apache.struts2.views.tiles.TilesResult.doExecute(TilesResult.java:104)
	at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
...
10 avr. 2007 16:19:59 org.apache.tiles.taglib.RenderTagSupport doCatch
GRAVE: Error during rendering
javax.servlet.jsp.JspException: Error executing tag: Attribute 'title' not found.
	at org.apache.tiles.taglib.ContainerTagSupport.doEndTag(ContainerTagSupport.java:84)
	at org.apache.jsp.WEB_002dINF.templates.be_jsp._jspx_meth_tiles_insertAttribute_0(be_jsp.java:176)
	at org.apache.jsp.WEB_002dINF.templates.be_jsp._jspService(be_jsp.java:88)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
	at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
	at org.apache.tiles.context.servlet.ServletTilesRequestContext.include(ServletTilesRequestContext.java:181)
	at org.apache.tiles.context.TilesRequestContextWrapper.include(TilesRequestContextWrapper.java:64)
	at org.apache.struts2.tiles.StrutsTilesRequestContext.include(StrutsTilesRequestContext.java:120)
	at org.apache.struts2.tiles.StrutsTilesRequestContext.dispatch(StrutsTilesRequestContext.java:83)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:395)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:345)
	at org.apache.struts2.views.tiles.TilesResult.doExecute(TilesResult.java:104)
	at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:178)
...
Je n'arrive pas à trouver pourquoi il ne voit rien :'(

Merci pour votre aide.

PPDL