iOS 架构 i386 的 undefined symbol

Question

当我尝试编译我的项目时出现错误。我添加了所有必需的框架 - AVFoundation、opencv 和许多其他框架，但它对我没有帮助。这是此错误的几行:

     Undefined symbols for architecture i386:

  "_OBJC_CLASS_$_AVCaptureDevice", referenced from:
      objc-class-ref in MACaptureSession.o
  "_OBJC_CLASS_$_AVCaptureDeviceInput", referenced from:
      objc-class-ref in MACaptureSession.o
  "_OBJC_CLASS_$_AVCaptureSession", referenced from:
      objc-class-ref in MACaptureSession.o
  "_OBJC_CLASS_$_AVCaptureStillImageOutput", referenced from:
      objc-class-ref in MACaptureSession.o
  "_OBJC_CLASS_$_AVCaptureVideoPreviewLayer", referenced from:
      objc-class-ref in MACaptureSession.o
  "_OBJC_CLASS_$_CABasicAnimation", referenced from:
      objc-class-ref in MAImagePickerFinalViewController.o
  "_OBJC_CLASS_$_CATransition", referenced from:
      objc-class-ref in MAImagePickerControllerAdjustViewController.o
      objc-class-ref in MAImagePickerController.o
  "_OBJC_CLASS_$_MPVolumeView", referenced from:
      objc-class-ref in MAImagePickerController.o
  "_kCATransition", referenced from:
      -[MAImagePickerControllerAdjustViewController confirmedImage] in MAImagePickerControllerAdjustViewController.o

Answer 1

只需添加CoreMedia.framework 和 AVFoundation.framework 到您的项目。

必须。

项目 -> 目标 -> 构建阶段 -> 将二进制文件与库链接 -> “+” -> 选择你的框架