Spring: but no declaration can be found for element 'tx:annotation-driven'

Spring加载tx:annotation-driven错误

cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'tx:annotation-driven'.

原因是tx没有配置好, 在Spring配置文件中, 修改

xmlns="http://www.springframework.org/schema/beans"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:tx="http://www.springframework.org/schema/tx"

xsi:schemaLocation="

http://www.springframework.org/schema/beans 

http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://www.springframework.org/schema/context

        http://www.springframework.org/schema/context/spring-context-2.5.xsd

        http://www.springframework.org/schema/tx 

        http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

参考: http://forum.springframework.org/showthread.php?p=166263