上傳到解析時Imagepicker崩潰

每當我嘗試將照片上傳到Parse作爲用戶的個人資料圖片時，我的應用都會崩潰。在網上查找花費的時間，但無法弄清楚。請幫忙上傳到解析時Imagepicker崩潰

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [NSObject : AnyObject]) { 
    let pickedImage: UIImage = info[UIImagePickerControllerOriginalImage] as! UIImage 
     let imageData = UIImagePNGRepresentation(pickedImage) 
    let imageFile:PFFile = PFFile(data: imageData) 
    PFUser.currentUser()!.setObject(imageFile, forKey: "profile_picture") 
    PFUser.currentUser()!.saveInBackground() 
    picker.dismissViewControllerAnimated(true, completion: nil) 
}

來源

2015-10-07 DesignMeetsCode

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