检查$ M2_HOME环境变量和mvn脚本匹配

Question

I just install a maven project into Eclipse.

Right click in the project -> Run As -> Maven clean  

I got this error

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

but the variable is set, because going in the command line and typing set I see this:

M2_HOME=C:\PGM\apache-maven-3.3.3
M2=C:\PGM\apache-maven-3.3.3\bin

Answer 1

Maybe this could help:

Extracted from the following thread, Eclipse error setting up Maven project for class exercise: Check $M2_HOME environment variable and mvn script match

from Abhinav Kumar answer:

If u are getting error like -Dmaven.multiModuleProjectDirectory system propery is not set. Check $M2_HOME environment variable and mvn script match In eclipse then go through Window--> Preference --> Java --> Installed JREs --> Edit In the edit Default VM arguments you need to put If you already set the maven home. -Dmaven.multiModuleProjectDirectory=M2_HOME (For Windows machine) -Dmaven.multiModuleProjectDirectory=$M2_HOME (For Mac OS X)