IntelliJIdea14中的Maven3.3.1配置错误

我从http://maven.apache.org/download.cgi获得了maven .tar文件,并将其安装到路径/ usr/local /.我在新窗口中运行mvn -version命令,输出正确.下面是我的主目录中的.bash_profile:

JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk7/Contents/Home  
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar  
PATH=$JAVA_HOME/bin:$PATH:  
export JAVA_HOME  
export CLASSPATH  
export PATH  
M2_HOME=/usr/local/maven  
M2=$M2_HOME/bin  
PATH=$M2:$PATH  
export M2_HOME    
export M2  
export PATH

和mvn -version如下:

BianFranks-MacBook-Pro:~ Frank$ mvn -version  
Apache Maven 3.3.1 (cab6659f9874fa96462afef40fcf6bc033d58c1c; 2015-03-    14T04:10:27+08:00)  
Maven home: /usr/local/maven  
Java version: 1.7.0_72, vendor: Oracle Corporation  
Java home: /Library/Java/JavaVirtualMachines/jdk7/Contents/Home/jre  
Default locale: en_US, platform encoding: UTF-8  
OS name: "mac os x", version: "10.10.2", arch: "x86_64", family: "mac"

但是在Intellij IDEA 14中通过Maven清洁模块时出现了提示:

/Library/Java/JavaVirtualMachines/jdk7/Contents/Home/bin/java -Dmaven.home=/usr/local/maven -Dclassworlds.cOnf=/usr/local/maven/bin/m2.conf -Didea.launcher.port=7532 "-Didea.launcher.bin.path=/Applications/IntelliJ IDEA 14.app/Contents/bin" -Dfile.encoding=UTF-8 -classpath "/usr/local/maven/boot/plexus-classworlds-2.5.2.jar:/Applications/IntelliJ IDEA 14.app/Contents/lib/idea_rt.jar" com.intellij.rt.execution.application.AppMain org.codehaus.classworlds.Launcher -Didea.version=14.0.2 clean  
-Dmaven.multiModuleProjectDirectory system propery is not set. Check   $M2_HOME environment variable and mvn script match.   
Process finished with exit code 1

系统属性没有设置,但我不知道如何设置它...

打开IntelliJ设置对话框.

在Maven中 - > Runner选项设置以下VM选项:-Dmaven.multiModuleProjectDirectory = project root