-Dmaven.multiModuleProjectDirectory system propery is not set. Check $M2_HOME environment variable a

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:\Maven\apache-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