[MyFaces-users] MyFaces / Tomahawk / Tiles (NoClassDefFoundError)

I'm having some trouble understanding how to get Tiles working. I
followed the directions on this page:
http://myfaces.apache.org/tomahawk/tiles.html

Now I've managed to prevent my project from deploying. Here's the
stacktrace I get when I try to deploy:
Dec 22, 2008 9:54:02 PM org.apache.catalina.core.StandardContext
listenerStart
SEVERE: Exception sending context initialized event to listener instance
of class org.apache.myfaces.webapp.StartupServletContextListener
java.lang.NoClassDefFoundError:
org/apache/struts/tiles/DefinitionsFactoryException
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.getConstructor(Class.java:1657)
at
org.apache.myfaces.config.FacesConfigurator.getApplicationObject(FacesConfigurator.java:741)
at
org.apache.myfaces.config.FacesConfigurator.configureApplication(FacesConfigurator.java:644)
at
org.apache.myfaces.config.FacesConfigurator.configure(FacesConfigurator.java:277)
at
org.apache.myfaces.webapp.AbstractFacesInitializer.buildConfiguration(AbstractFacesInitializer.java:131)
at
org.apache.myfaces.webapp.Jsp21FacesInitializer.initContainerIntegration(Jsp21FacesInitializer.java:64)
at
org.apache.myfaces.webapp.AbstractFacesInitializer.initFaces(AbstractFacesInitializer.java:83)
at
org.apache.myfaces.webapp.StartupServletContextListener.contextInitialized(StartupServletContextListener.java:72)
at
org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3843)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4350)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:511)
at
org.apache.catalina.startup.HostConfig.check(HostConfig.java:1229)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:297)
at
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at
org.apache.catalina.manager.ManagerServlet.check(ManagerServlet.java:1465)
at
org.apache.catalina.manager.ManagerServlet.deploy(ManagerServlet.java:821)
at
org.apache.catalina.manager.ManagerServlet.doGet(ManagerServlet.java:349)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:196)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassNotFoundException:
org.apache.struts.tiles.DefinitionsFactoryException
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1360)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1206)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 47 more

This is my faces-config.xml:
<faces-config version="1.2"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
" rel="nofollow">http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd">

<application>

<view-handler>org.apache.myfaces.tomahawk.application.jsp.JspTilesViewHandlerImpl</view-handler>
</application>
</faces-config>

and web.xml contains this:
<context-param>
<param-name>tiles-definitions</param-name>
<param-value>/WEB-INF/tiles.xml</param-value>
</context-param>

Since I don't think it gets far enough to read the tiles.xml file, I'll
refrain from posting it and cluttering up this e-mail any further.

I'm using Tomahawk-1.1.8, myfaces-1.2.5, and tiles 2.0.5
(tiles-api-2.0.5.jar, tiles-core-2.0.5.jar, tiles-jsp-2.0.5.jar). I
don't particularly want struts, I really just want the tiles support;
but if including all of struts is the only answer, then so be it. I've
checked the mailing list, but I could only find things related to JBoss
and I/O errors. The three pages of google results which came up did not
explain the cause of, nor solution to the exception which is being
thrown. I'm posting the question on this list because I'm following the
guide from myfaces.apache.org. If this is more of a question for the
struts mailing list, please let me know.

Thank you,
Adam