之前有次开发过程中，遇到Maven编译的错误，今天别的同事上线过程中，又发现出现了同样的问题，所以在这mark一下。

Unable to get dependency information: Unable to read the metadata file for artifact 'com.cdk.watermark:watermark-filter:jar': Parent element is a duplicate of the current project for project com.cdk.watermark:watermark-filter

watermark-filter包pom引用

<parent>
 <groupId>com.cdk.watermark</groupId>
 <artifactId>watermark-filter</artifactId>
 <version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.cdk.watermark</groupId>
<artifactId>watermark-filter</artifactId>

解决方案：Maven2升级为Maven3重新编译即可