HI with spring mvc 3.1 and spring webflow, I am not able to navigate to invoke a method from a jsp web page.

The error is :

21:43:46,331 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/HousewareAdmin-web].[Spring MVC Dispatcher Servlet]] (http--192.168.1.20-8080-3) Servlet.service() for servlet Spring MVC Dispatcher Servlet threw exception: javax.servlet.ServletException: Could not resolve view with name 'categories_image/categories_image_update' in servlet with name 'Spring MVC Dispatcher Servlet'

Here is my controller code:

Code:
@RequestMapping(value = "/categories_image/categories_image_update", method = RequestMethod.GET)
    public String update(CategoryPageBean categoryPageBean, 
                    HttpSession session, Model model) {

           ...
                      
                  
	return "categories_image/categories_image_update";
    }
views.xml file:

Code:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE tiles-definitions PUBLIC
	"-//Apache Software Foundation//DTD Tiles Configuration 2.1//EN"
	"http://tiles.apache.org/dtds/tiles-config_2_1.dtd">
	
<tiles-definitions>
	
	<definition name="categories/search" extends="categoryPageLayout">
		<put-attribute name="body">
			<definition template="/WEB-INF/categories/search.jsp">
				<put-attribute name="searchForm" value="/WEB-INF/categories/searchForm.jsp" />
				<put-attribute name="bookingsTable" value="/WEB-INF/categories/bookingsTable.jsp" />
			</definition>
		</put-attribute>
	</definition>

        <definition name="supplierPage" extends="supplierEditPageLayout">
		<put-attribute name="body" value="/WEB-INF/suppliers/supplierPage.jsp" />
	</definition>
        
	<definition name="categories/*" extends="supplierEditPageLayout">
		<put-attribute name="body" value="/WEB-INF/categories/{1}.jsp" />
	</definition>
     
        <definition name="categories_create/*" extends="supplierEditPageLayout">
		<put-attribute name="body" value="/WEB-INF/categories/{1}.jsp" />
	</definition>
</tiles-definitions>
Any suggestion is very appreciated.

Thanks
Sam