-Dmaven.multiModuleProjectDirectory system propery is not set. Check $M2_HOME environment variable and mvn script match.

myeclipse中使用maven插件的时候，运行run as maven build的时候报错
-Dmaven.multiModuleProjectDirectory system propery is not set. Check $M2_HOME environment variable and mvn script match.

可以设一个环境变量M2_HOME指向你的maven安装目录
M2_HOME=D:Mavenapache-maven-3.3.9
然后在Window->Preference->Java->Installed JREs->Edit
在Default VM arguments中设置
-Dmaven.multiModuleProjectDirectory=$M2_HOME

参照：
http://stackoverflow.com/questions/29330577/maven-3-3-1-eclipse-dmaven-multimoduleprojectdirectory-system-propery-is-not-s