Xcode 8 - swift 3: Creating an image format with an unknown type is an error - swift3

Question

I get an error when selecting an image with UIImagePicker:
[Generic] Creating an image format with an unknown type is an error
I'm using Xcode 8.1 and Swift 3.
I've already searched all around the web but nothing seems to solve my problem, please help!
Here it's my code:
class TabBarController: UITabBarController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
var isSelected: Bool = false
var imgPicker: UIImagePickerController = UIImagePickerController()
override func viewDidLoad() {
super.viewDidLoad()
//imgPicker = UIImagePickerController()
imgPicker.delegate = self
imgPicker.allowsEditing = false
imgPicker.sourceType = .photoLibrary
}
func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
imgPicker.dismiss(animated: true, completion: nil)
if let image = info[UIImagePickerControllerOriginalImage] as? UIImage {
self.performSegue(withIdentifier: "toPostPicture", sender: image)
}
}
func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
dismiss(animated: true, completion: nil)
}
func askImagePickerSource(sender: UIViewController) {
if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.camera) {
let alert = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
let cameraAction = UIAlertAction(title: "Camera", style: .default, handler: { (action: UIAlertAction) in
self.imgPicker.sourceType = .camera
self.imgPicker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .camera)!
sender.present(self.imgPicker, animated: true, completion: nil)
})
let photoLibraryAction = UIAlertAction(title: "Photo Library", style: .default, handler: { (action: UIAlertAction) in
self.imgPicker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
sender.present(self.imgPicker, animated: true, completion: nil)
})
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel) { (UIAlertAction) in
sender.dismiss(animated: true, completion: nil)
}
alert.addAction(cameraAction)
alert.addAction(photoLibraryAction)
alert.addAction(cancelAction)
sender.present(alert, animated: true, completion: nil)
} else {
self.imgPicker.mediaTypes = UIImagePickerController.availableMediaTypes(for: .photoLibrary)!
sender.present(self.imgPicker, animated: true, completion: nil)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "toPostPicture" {
if let postPictureVC = segue.destination as? PostPictureVC {
if let image = sender as? UIImage {
postPictureVC.image = image
}
}
}
}
}

Answer 1

I faced the same issue by not adding delegate as 'self' for the UIImagePickerController. After adding it I was able to get the selected image from gallery. But even after adding delegate as self and able to access the image (Display on an ImageView), I was still getting the same error. After a further research on SO I got to know that this is just a bug and doesn't affect the app in any way.
See also "Creating an image format with an unknown type is an error Objective-C Xcode 8"

Answer 2

Can you post the .debugDescription of the info parameter in your picker delegate?
func imagePickerController(_ picker: UIImagePickerController,
didFinishPickingMediaWithInfo info: [String : Any]) {
print(info.debugDescription)
...
}