我刚开始在Xcode的控制台中看到以下警告：
Class VCWeakObjectHolder is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/Frameworks/ViceroyTrace.framework/ViceroyTrace (0x12f3384d0) and
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/AVConference.framework/AVConference (0x12e464e38). One of the two will be used. Which one is undefined.
我不熟悉上述框架，并且我没有在我正在试验的小应用程序中使用任何框架。
我不知道为什么这种情况开始出现，除非我偶然做了一些事情并且我不记得了。
关于原因是什么的任何线索？
感谢