常见错误

• Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSArrayM lfPopFirstObject]: unrecognized selector sent to instance 0x170441f80'

  解决方法：
  Other Linker Flags  添加 -all_load

• Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '* -[AVAssetWriter startWriting] Cannot call method when status is 3'

  解决方法：
  设备已经占用了，有可能是在退出直播控制器的时候，没有调用 [liveManager stopLive] 方法