<aop:config>标签的报错问题

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:aop="http://www.springframework.org/schema/aop"
	xmlns:tx="http://www.springframework.org/schema/tx"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	http://www.springframework.org/schema/beans/spring-beans-2.0.xsd 
	http://www.springframework.org/schema/aop 
	http://www.springframework.org/schema/aop/spring-aop.2.0.xsd 
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-2.0.xsd">

	<!-- spring2.0 Transaction -->
	<bean id="myHibTxManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<tx:advice id="txadvice" transaction-manager="myHibTxManager">
		<tx:attributes>
			<!-- 对查询方法要求只读事务 -->
			<tx:method name="login*" propagation="SUPPORTS"
				read-only="true" />
			<tx:method name="show*" propagation="SUPPORTS"
				read-only="true" />
			<tx:method name="search*" propagation="SUPPORTS"
				read-only="true" />
			<tx:method name="to*" propagation="SUPPORTS"
				read-only="true" />
			<!-- 对其它方法要求事务 -->
			<tx:method name="do*" propagation="REQUIRED" />
			<tx:method name="*" propagation="REQUIRED" />
		</tx:attributes>
	</tx:advice>
	<aop:config>
		<aop:pointcut id="biMethods"
			expression="execution(* biz.*.*(..))" />
		<!-- 植入 -->
		<aop:advisor advice-ref="txadvice" pointcut-ref="biMethods" />
	</aop:config>
	<aop:config>
		<aop:pointcut id="actionMethods"
			expression="execution(* web.action.*.*(..))" />
		<aop:advisor advice-ref="txadvice" pointcut-ref="actionMethods" />
	</aop:config>
	<!-- end spring2.0 Transaction -->