JSF2.0使用tomahawk T标签 web.xml 文件配置

工程有jsf2.0的jar包和tomahawk.jar，只要运行*.xhtml文件就报错，应该怎么配置？

我的web.xml:

<context-param>

<param-name>javax.faces.DEFAULT_SUFFIX</param-name>

<param-value>.xhtml</param-value>

</context-param>

<filter>

<filter-name>MyFacesExtensionsFilter</filter-name>

<filter-class>

org.apache.myfaces.webapp.filter.ExtensionsFilter

</filter-class>

<init-param>

<param-name>uploadMaxFileSize</param-name>

<param-value>20m</param-value>

</init-param>

</filter>

<filter-mapping>

<filter-name>MyFacesExtensionsFilter</filter-name>

<servlet-name>Faces Servlet</servlet-name>

</filter-mapping>

<filter-mapping>

<filter-name>MyFacesExtensionsFilter</filter-name>

<url-pattern>/faces/myFacesExtensionResource/*</url-pattern>

</filter-mapping>

<!-- Faces Servlet -->

<servlet>

<servlet-name>Faces Servlet</servlet-name>

<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<!-- Faces Servlet Mapping -->

<servlet-mapping>

<servlet-name>Faces Servlet</servlet-name>

<url-pattern>/faces/*</url-pattern>

<url-pattern>*.xhtml</url-pattern>

</servlet-mapping>