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 Enumerations and Optionals in Swift Introduction to Optionals Optional Values

Declare a value in Optional

let someValue : Int? = nil any one help me to find this error

optionals.swift
// Enter your code below
let someValue : Int? = nil

2 Answers

use var instead of let

// Enter your code below
var someValue : Int? = nil

thank you very much

Glad to help