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iOS Object-Oriented Swift Class Inheritance Creating a Subclass

Inheritance there have error ..please tell me what is the error about

I have not good understand about this error please help me to get solution

class Vehicle {
  var numberOfDoors: Int
  var numberOfWheels: Int

  init(withDoors doors: Int, andWheels wheels: Int) {
      self.numberOfDoors = doors
      self.numberOfWheels = wheels
class Car : Vehicle{
    let isCar : Bool = true
    let numberOfSeats : Int = 4
    override init(withDoors doors: Int, andWheels wheels: Int){
     super.init(withDoors: doors, andWheels: wheels)


let someCar = Car.init(withDoors: 4, andWheels: 1)

1 Answer

Just delete the "isCar" constant and it should work :)