我得到了以下代码片段: let newPhotoSettings = AVCapturePhotoSettings(rawPixelFormatType: OSType(self.photoOutput.availableRawPhotoPixelFormatTypes.first!), processedFormat: nil) 当我在Xcode12beta6中构建时,我得到了以下错误: Value of type 'AVCapturePhotoOutput' has no member 'availableRawPhotoPixelFormatTypes'