One-of-the-two-will-be-used--Which-one-is-undefined-

报错

objc[56644]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_101.jdk/Contents/Home/bin/java (0x10d52e4c0) 
and /Library/Java/JavaVirtualMachines/jdk1.8.0_101.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10d5b24e0). 
One of the two will be used. Which one is undefined.

1、配置环境变量

JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_151.jdk/Contents/Home
CLASSPAHT=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
PATH=$JAVA_HOME/bin:$PATH:
export JAVA_HOME
export CLASSPATH
export PATH

plan A 配置Intellij Idea 1.打开idea.properties文件 help->edit custom properties 添加一句：

idea.no.launcher=true

2、重启idea

plan B 如果修改Idea配置不生效的话

在Finder 的应用程序中找到IDEA的图标，右键，显式包内容，contents-》bin里面

目录
/Applications/Android Studio.app/Contents/bin/idea.properties
添加
idea.no.launcher=true

重启