注解事物报错

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

Multiple annotations found at this line:

- schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/task/spring-tx.xsd', because 1) could not find the document; 2) the document could 

not be read; 3) the root element of the document is not <xsd:schema>.

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