解决办法：
1.在cmd中输入mvn -v查看maven版本等信息
C:\Users\Administrator>mvn -v
Apache Maven 3.5.2 (138edd61fd100ec658bfa2d307c43b76940a5d7d; 2017-10-18T15:58:1
3+08:00)
Maven home: D:\maven\apache-maven-3.5.2\bin\..
Java version: 1.7.0_45, vendor: Oracle Corporation
Java home: D:\myeclipse2014\binary\com.sun.java.jdk7.win32.x86_64_1.7.0.u45\jre
Default locale: zh_CN, platform encoding: GBK
OS name: "windows 7", version: "6.1", arch: "amd64", family: "windows"
2.在ecilpe的window > preferences>java>installed jREs选择点击edit
3. 添加 -Dmaven.multiModuleProjectDirectory=$MAVEN_HOME
4.重新clean即可