weblogic 启动的时候 老是有个警告 大家看看是怎么回事

<2011-1-7 上午09时00分23秒 CST> <Warning> <HTTP> <BEA-101248> <[Application: 'E:\workSpace', 
Module: 'LCSKFW']: Deployment descriptor "web.xml" is malformed.
 Check against the DTD: org.xml.sax.SAXParseException: cvc-elt.1:
 Cannot find the declaration of element 'web-app'. (line 5, column 52).>web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<display-name>LCSKFW</display-name>
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>
org.apache.struts.action.ActionServlet
</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>application</param-name>
<param-value>ApplicationResources</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>inspur.tax.skfw.util.EncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>GBK</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<mime-mapping>
<extension>rar</extension>
<mime-type>application/rar</mime-type>
</mime-mapping>
<welcome-file-list>
<welcome-file>jsp/login.jsp</welcome-file>
</welcome-file-list>
</web-app>