Cannot invoke 'append' with an argument list of type '(String, withName: String)' in Alamofire 4.0
问题 I'm using Alamofire 4.0 to upload video to server after select or record it through device/camera but when I'm trying to call upload function with append , this error appeared to me in all append statement , what is the wrong in my code. the second my question about if I want to display progress with percentage of progress during upload how I can make that through Alamofire. Thanks :) My code after reading url of selected/recorded video func imagePickerController(_ picker: