but no declaration can be found for element 'aop:aspectj-autoproxy'.

1、错误描写叙述

Multiple annotations found at this line:
	- cvc-complex-type.2.4.c: The matching wildcard is strict, but no declaration can be found for element 'aop:aspectj-autoproxy'.
	- schema_reference.4: Failed to read schema document 'http://www.springframework.org/schema/aop/spring-aop-3.0.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>.

but no declaration can be found for element 'aop:aspectj-autoproxy'.

2、错误原因

3、解决的方法

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