weblogic启动报错 DescriptorException: Unmarshaller 10

<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">

2_4.xsd有的是2_5,所以版本高了,要改低一点才行