cmd+B编译不通过
objc[10900]: Class GTMLogger is implemented in both /Applications/Google Chrome.app/Contents/Versions/41.0.2272.89/Google Chrome Framework.framework/Google Chrome Framework and /Applications/Google Chrome.app/Contents/Versions/41.0.2272.89/Google Chrome Framework.framework/Frameworks/KeystoneRegistration.framework/KeystoneRegistration. One of the two will be used. Which one is undefined.