I have an error massage that prints on the console every-time I run anything. Please help.
已回答
objc[677]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java (0x105b734c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1073f14e0). One of the two will be used. Which one is undefined.
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It's not an error, see http://stackoverflow.com/a/43003231/104891.