swift - Xcode错误 - 架构x86_64的 undefined symbol ？

我正在运行Swift4和Xcode9测试版。我得到了这个错误，我不知道如何解决它。我甚至不知道那是什么意思……

Undefined symbols for architecture x86_64:
"__T0So22AVCapturePhotoSettingsC12AVFoundation01_abC16SwiftNativeTypesACWP", referenced from:
      __T014InstagramClone26CustomCameraViewControllerC23cameraBtn_TouchUpInsideyypF in CustomCameraViewController.o
  "__T012AVFoundation39_AVCapturePhotoSettingsSwiftNativeTypesPAAE016availablePreviewc11PixelFormatG0Says6UInt32VGfg", referenced from:
      __T014InstagramClone26CustomCameraViewControllerC23cameraBtn_TouchUpInsideyypF in CustomCameraViewController.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

知道怎么解决这个问题吗？

最佳答案

在我的案例中，我打电话给settings = AVCapturePhotoSettings()发现了这个错误。
最终，解决方案调用了另一个初始化程序。即：

settings = AVCapturePhotoSettings(format: [AVVideoCodecKey : AVVideoCodecType.jpeg])

关于swift - Xcode错误 - 架构x86_64的 undefined symbol ？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/45694242/