Maven home M2 HOME not being picked up by IntelliJ IDEA

Question

I am trying to do a simple maven build with IntelliJ IDEA 10 5 1 on OS X Lion and am getting the following error        Error running my-app  package   No valid Maven installation found    Either set the home directory in the configuration dialog or set the   M2 HOME environment variable on your system    I have set M2 HOME to the following  but I am still having issues   And yes  I did restart IntelliJ     echo  M2 HOME  usr share maven   I then manually entered the path to maven in IntelliJ s Maven Settings for the project   This is not something that I want to do for every project  so is there something I am missing with how to get IntelliJ know where my maven home is

User · Answer

If you are having this problem with a homebrew installation of maven 3 on the OSX 10 9 4 then check out this blog post

User · Answer

Mac OS apps cannot read bash environment variables  Look at this question Setting environment variables in OS X  to expose M2 HOME to all applications including IntelliJ  You do need to restart after doing this

User · Answer

Another option is to add the M2 HOME variable at  IntelliJ IDEA  gt Preferences  gt IDE Settings  gt Path Variables  After a restart of IntelliJ  IntelliJ IDEA  gt Preferences  gt Project Settings  gt Maven  gt Maven home directory should be set to your M2 HOME variable

User · Answer

Got to this answer   probably the answers above are to long      just type in    echo  setenv M2 HOME  M2 HOME    sudo tee -a  etc launchd conf   and restart your mac  thats it    restarting is annoying    just use the command    grep -E   setenv   etc launchd conf   xargs -t -L 1 launchctl   and restart IntelliJ IDEA

User · Answer

If M2 HOME is configured to point to the Maven home directory then    Go to File - gt  Settings Search for Maven Select Runner Insert in the field VM Options the following string   Dmaven multiModuleProjectDirectory  M2 HOME    Click Apply and OK

User · Answer

In case you don t want to use the M2 HOME and want to direct the IntelliJ to the maven installation you can simply set it by    goto File    Setting    Maven    Maven home directory  point to your maven build directory e g   usr local maven apache-maven-3 0 4   A better way is to have a symlink e g   latest  for the latest version and point your IntelliJ to use that for consistency  given latest points to the latest version of maven installed on your box

User · Answer

type in Terminal     mvn --version   then get following result   Apache Maven 3 0 5  r01de14724cdef164cd33c7c8c2fe155faf9602da  2013-02-19 16 51 28 0300  Maven home   opt local share java maven3 Java version  1 6 0 65  vendor  Apple Inc  Java home   System Library Java JavaVirtualMachines 1 6 0 jdk Contents Home Default locale  ru RU  platform encoding  MacCyrillic OS name   mac os x   version   10 9 4   arch   x86 64   family   mac    here in second line we have   Maven home   opt local share java maven3   type this path into field on configuration dialog  That s all to fix

[macos] Maven home (M2_HOME) not being picked up by IntelliJ IDEA

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