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报如下错误，提示找不到xsd文件
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 'dubbo:application'.
- schema_reference.4: Failed to read schema document 'http://code.alibabatech.com/schema/dubbo/dubbo.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>. 
然后右键update project
