IntelliJ 14 missing HOME env. variable

Question

Whenever I start IntelliJ I see a notification balloon pointing out that I have an undeclared HOME variable. I can remove it but the same thing happens when I open IntelliJ again. I would like to fix it but I have no idea which HOME variable it is referring to.

The project is a Grails 2.4 project with a JDK7 on Windows 7.

Any suggestions?

Answer 1

Have you tried to set this enviroment variable in your windows system settings?

I think the name of this variable must be M2_HOME and must point to the path of your maven installation.

start -> right click on computer -> extended system settings -> enviroment

See also: http://maven.apache.org/download.cgi under section "Installation Instructions" and "Windows".