Apple Mach-O Linker (ld) Error Group with Swift 3 & Xcode 9 GM

user_637988 0
Viewed 1674

This was running fine till GM Xcode (and iOS 11). Now I get these errors:

Apple Mach-O Linker (ld) Error Group
  "__T0So20AVCapturePhotoOutputC12AVFoundation01_abC16SwiftNativeTypesACWP", referenced from:
xxxxxxxxxx

"__T012AVFoundation37_AVCapturePhotoOutputSwiftNativeTypesPAAE012availableRawc11PixelFormatG0SaySo8NSNumberCGfg", referenced from:
xxxxxxxxx

"  "__T0So22AVCapturePhotoSettingsC12AVFoundation01_abC16SwiftNativeTypesACWP", referenced from:
xxxxxxxxxx

ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Some of the lines it's pointing at are:

photoSettings = AVCapturePhotoSettings(rawPixelFormatType: OSType(self.photoOutput.availableRawPhotoPixelFormatTypes.first!))
photoSettings.previewPhotoFormat = [kCVPixelBufferPixelFormatTypeKey as String: photoSettings.availablePreviewPhotoPixelFormatTypes.first!.uint32Value,
                                                kCVPixelBufferWidthKey as String: 3024, kCVPixelBufferHeightKey as String: 3024]

Also:

let rawFormat = self.photoOutput.availableRawPhotoPixelFormatTypes.first!.uint32Value
photoSettings = AVCapturePhotoSettings(rawPixelFormatType: OSType(rawFormat),
                            processedFormat: [AVVideoCodecKey : AVVideoCodecJPEG,
                                              AVVideoCompressionPropertiesKey : [AVVideoQualityKey : 1.0]] as [String : Any])
            photoSettings.previewPhotoFormat = [kCVPixelBufferPixelFormatTypeKey as String: photoSettings.availablePreviewPhotoPixelFormatTypes.first!.uint32Value,
                                                kCVPixelBufferWidthKey as String: 3024,
                                                kCVPixelBufferHeightKey as String: 3024]
swift3 avfoundation swift xcode ios
3 Answers

I've changed:

if cameraOutput.supportedFlashModes.contains(NSNumber(value: flashMode.rawValue)) {

to:

if cameraOutput.__supportedFlashModes.contains(NSNumber(value: flashMode.rawValue)) {

and

let previewPixelType = settings.availablePreviewPhotoPixelFormatTypes.first!

to

let previewPixelType = settings.__availablePreviewPhotoPixelFormatTypes.first!

and the app started.

user_18475110
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