myeclipse 建立Web project出错？

[thinke365]

怎么一开始就出错啊？
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

web.xml报错，它的内容如上所示
具体报错信息为：
Severity and Description Path Resource Location Creation Time Id
Referenced file contains errors (http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd). For more information, right click on the message and select "Show Details..." Login/WebRoot/WEB-INF web.xml line 1 1215692536906 2