解决dubbox-demo-provider.xml报错的问题：提示Failed to read schema document

dubbo-demo-provider导入eclipse后dubbox-demo-provider.xml报错详情：：

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>.

解决方案：：

1.解压dubbo-2.8.4.jar,在解压后的文件中找到dubbo.xsd文件，并copy至一个目录，如E:/dubbo

2.Eclipse::::         (1)windows->preferrence->xml->xmlcatalog 

                     (2)add->catalog entry  ->file system 

3. 右击dubbo-demo-provider.xml--->validate.

4.错误搞定