spring配置时通配符的匹配很全面, 但无法找到元素 'tx:annotation-driven'

配置Spring时出现如题这个错误，下面是xml的内容

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"  
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
       xmlns:context="http://www.springframework.org/schema/context" 
       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-3.0.xsd">

    <context:component-scan base-package="com.erification.web" />

    <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
          <!-- results in a setDriverClassName(String) call -->
          <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
          <property name="url" value="jdbc:mysql://localhost:3306/erification"/>
          <property name="username" value="root"/>
          <property name="password" value="1"/>
          <!-- 连接池启动时的初始值 -->
          <property name="initialSize" value="1" />
          <!--  连接池的最大值 -->
          <property name="maxActive" value="500" />
          <!-- 最大空闲值，当经过一个高峰后，连接池可以慢慢将一些用不到的连接释放，知道maxIdle为止 -->
          <property name="maxIdle" value="2" />
          <!-- 最小空闲值，当小于这个值时会去申请连接 -->
          <property name="minIdle" value="1" />
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />
        <property name="mappingResources">
            <list>
                <value>com/erification/web/model/user.hbm.xml</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <value>
                hibernate.dialect=org.hibernate.dialect.MySQLDialect
                hibernate.hbm2ddl.auto=update
                hibernate.show_sql=false
                hibernate.cache.use_second_level_cache=true
                hibernate.cache.provider_class=org.hibernate.cache.EhCacheProvider
                hibernate.cache.use_query_cache=false
            </value>
        </property>
    </bean>

    <bean id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager" >
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

    <tx:annotation-driven transaction-manager="txManager"/>

</beans>