解决-Dmaven.multiModuleProjectDirectory system property is not set. Check $M2_HOME environment variabl

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

1.添加M2_HOME的环境变量

　　2.Preference->Java->Installed JREs->Edit 选择一个jdk,

　　添加  -Dmaven.multiModuleProjectDirectory=$M2_HOME

-Dmaven.multiModuleProjectDirectory=$M2_HOME