2017-08-21 08:11:07.079411+0800 YZLiveApp[751:591746] [DYMTLInitPlatform] platform initialization successful
2017-08-21 08:12:38.946229+0800 YZLiveApp[751:591655] [MC] System group container for systemgroup.com.apple.configurationprofiles path is /private/var/containers/Shared/SystemGroup/systemgroup.com.apple.configurationprofiles
2017-08-21 08:12:38.947976+0800 YZLiveApp[751:591655] [MC] Reading from public effective user settings.
2017-08-21 08:13:06.136545+0800 YZLiveApp[751:591975] [access] This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app‘s Info.plist must contain an NSCameraUsageDescription key with a string value explaining to the user how the app uses this data.
Message from debugger: Terminated due to signal 9
This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app‘s Info.plist must contain an NSMicrophoneUsageDescription key with a string value explaining to the user how the app uses this data.
原文：http://www.cnblogs.com/zyingn/p/Error12.html