My code works on Swift but not on exercise

Question

I don'k know whats wrong, my code works on Swift, but on the exercise i got the error "You didn't add the incrementBy method to the class RoundButton or click Preview for compiler errors.", Can someone help me pls?
```Button.swift
class Button {
  var width: Double
  var height: Double
  init(width:Double, height:Double){
    self.width = width
    self.height = height
  }
  func incrementBy(points: Double){
    width += points
    height += points
  }
}
class RoundButton: Button {
  var cornerRadius: Double = 5.0
  override func incermentBy(points: Double = 7.0) {
    width += points
    height += points
    }
}
```

Jennifer Nordell · Answer

Hi @David Montalvo (https://teamtreehouse.com/davidmontalvo)! 
First, you have a typo :smiley:  Happens to us all!  I'd encourage you to check the spelling of increment in your incrementBy call.  Also, we need to do the width and height increments differently.  Take a look at my RoundButton class and see what I mean:
```swift
class RoundButton: Button {
  var cornerRadius: Double = 5.0
  override func incrementBy(points: Double) {
    width += 7.0
    height += 7.0
    }
}
```
Good luck! :thumbsup:

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David Montalvo

David Montalvo

My code works on Swift but not on exercise

1 Answer

Jennifer Nordell

Jennifer Nordell