Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Protocols in Swift Creating Flexible Objects Using Protocols Protocol Inheritance

Protocol Inheritance Challenge Task 1: The error is that I need to add a method. The instructions don't mention methods.

The error says that I need to add a method. However, the instructions mention two properties but no method.

protocols.swift
protocol Animal {
  var numberOfLegs: Int { get }
}

protocol Pet: Animal {
  var cuddlyName: String { get set }
}

1 Answer

Chase Marchione
Chase Marchione
155,055 Points

Hi erin,

Similar to how the Animal protocol only has a getter, you only want a getter for Pet (which inherits from Animal), as well.

protocol Animal {
  var numberOfLegs: Int { get }
}

protocol Pet: Animal {
  var cuddlyName: String { get }
}

Hope this helps!