- [x] I have searched the
[issues](https://github.com/apache/incubator-dubbo/issues) of this repository
and believe that this is not a duplicate.
- [x] I have checked the
[FAQ](https://github.com/apache/incubator-dubbo/blob/master/FAQ.md) of this
repository and believe that this is not a duplicate.
### Environment
* Dubbo version: master branch, latest code as of 9/8/2018.
* Operating System version: not os specific
* Java version: 1.8
### Step to reproduce this issue
1. Checkout the latest code, using git clone.
2. import all projects as maven projects in eclipse.
3. Do a full build
Pls. provide [GitHub address] to reproduce this issue.
### Expected Result
What do you expected from the above steps?
There should be no validation error
### Actual Result
There are several xml/xsd validation errors reported on “dubbo-config-spring”
project:
Description Resource Path Location Type
cvc-complex-type.2.2: Element 'name' must have no element [children], and the
value must be valid. web-fragment.xml
/dubbo-config-spring/src/main/resources/META-INF line 5 XML Problem
cvc-elt.1: Cannot find the declaration of element 'beans'.
provider-nested-service.xml
/dubbo-config-spring/src/test/resources/org/apache/dubbo/config/spring line 22
XML Problem
cvc-pattern-valid: Value 'dubbo-fragment' is not facet-valid with respect to
pattern '($|_|\p{L})(\p{L}|\p{Nd}|_|$)*' for type 'null'. web-fragment.xml
/dubbo-config-spring/src/main/resources/META-INF line 5 XML Problem
Referenced file contains errors (http://dubbo.apache.org/schema/dubbo). For
more information, right click on the message in the Problems View and select
"Show Details..." annotation-consumer.xml
/dubbo-config-spring/src/test/resources/org/apache/dubbo/config/spring line 1
XML Problem
src-resolve: Cannot resolve the name 'beans:property' to a(n) 'element
declaration' component. dubbo.xsd
/dubbo-config-spring/src/main/resources/META-INF line 1106 XML
Schema Problem
src-resolve: Cannot resolve the name 'beans:property' to a(n) 'element
declaration' component. dubbo.xsd
/dubbo-config-spring/src/main/resources/META-INF/compat line 1112 XML
Schema Problem
escription Resource Path Location Type
cvc-complex-type.2.2: Element 'name' must have no element [children], and the
value must be valid. web-fragment.xml
/dubbo-config-spring/src/main/resources/META-INF line 5 XML Problem
cvc-elt.1: Cannot find the declaration of element 'beans'.
provider-nested-service.xml
/dubbo-config-spring/src/test/resources/org/apache/dubbo/config/spring line 22
XML Problem
cvc-pattern-valid: Value 'dubbo-fragment' is not facet-valid with respect to
pattern '($|_|\p{L})(\p{L}|\p{Nd}|_|$)*' for type 'null'. web-fragment.xml
/dubbo-config-spring/src/main/resources/META-INF line 5 XML Problem
Referenced file contains errors (http://dubbo.apache.org/schema/dubbo). For
more information, right click on the message in the Problems View and select
"Show Details..." annotation-consumer.xml
/dubbo-config-spring/src/test/resources/org/apache/dubbo/config/spring line 1
XML Problem
src-resolve: Cannot resolve the name 'beans:property' to a(n) 'element
declaration' component. dubbo.xsd
/dubbo-config-spring/src/main/resources/META-INF line 1106 XML
Schema Problem
src-resolve: Cannot resolve the name 'beans:property' to a(n) 'element
declaration' component. dubbo.xsd
/dubbo-config-spring/src/main/resources/META-INF/compat line 1112 XML
Schema Problem

What is actually happen?
If there is an exception, please attach the exception trace:
```
Just put your stack trace here!
```
[ Full content available at:
https://github.com/apache/incubator-dubbo/issues/2471 ]
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