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

Solution:

Go to: Window--> Preference --> Java --> Installed JREs --> Edit In the edit Default VM arguments you need to put If you already set the maven home, for Windows machine:

-Dmaven.multiModuleProjectDirectory=M2_HOME

And for Linux and Mac OS X:

-Dmaven.multiModuleProjectDirectory=$M2_HOME

In case you are using Maven 3.x, the variable is named $MAVEN_HOME

-Dmaven.multiModuleProjectDirectory=$MAVEN_HOME