@objc func dateChanged(datePicker: UIDatePicker) {

    let myCalendar = Calendar(identifier: .gregorian)
    let dmy = myCalendar.dateComponents([.day, .month, .year], from: Date())

    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "dd/MM/yyyy"

    inputTextField.text = dateFormatter.string(from: datePicker.date)

    let birthdayDate = dateFormatter.string(from: datePicker.date)
    print(birthdayDate)

    let now = NSDate()
    let ageComponents = myCalendar.dateComponents(.year, from: birthdayDate, to: now) //Ambiguous reference to member 'dateComponents(_:from:to:)'
    let age = ageComponents.year!

    label.text = age

    view.endEditing(true)

}