如何解决Mac下Class JavaLaunchHelper is implemented in both的错误

在执行程序的时候，经常会在控制台顶部出现如下错误：

objc[20327]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java (0x10fc284c0) and /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x10fcfe4e0). One of the two will be used. Which one is undefined.

或者

objc[19990]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_102.jdk/Contents/Home/bin/java (0x1060b54c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_102.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1061e04e0). One of the two will be used. Which one is undefined.

虽然不影响程序的运行，但是强迫症犯了，必须解决，Google了一下，发现stactoverflower上面已经有解决方案：
附上链接：objc3648-class-javalaunchhelper-is-implemented-in-both
在idea中，点击Help –> Edit Custom Properties,打开编辑配置文件，如果从来没编辑过则提示文件不存在，是否创建，点创建就好了。
然后在对话窗口中输入：

#http://stackoverflow.com/questions/43003012/objc3648-class-javalaunchhelper-is-implemented-in-both
idea.no.launcher=true

然后关闭IDEA，重新打开，再次运行后依旧发现还有这个错误。接着往下看发现如下回答：

I am using Intellij Idea 2017 and I got into the same problem. What solved the problem for me was to simply

close the project in intelliJ
File -> New -> project from existing resources
use Import from external model (if any)
open the project again.

那么只需要重新导入一下项目即可。