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 Swift 2.0 Basics Swift Types String Manipulation

What does an unresolved identifier mean?

I answered the task the best way I've learned how.. looking for help.

strings.swift
// Enter your code below
let name = "danny"
let greeting = "\(hi there,) \(name)"

2 Answers

Hey Daniel,

You wrote "hi there," inside of \(). You only have to interpolate variables in your string but you are trying to interpolate a variable called "hi there," which doesn't exist (and also wouldn't be a valid variable), that's why you're getting the unresolved identifier error.

The correct code for task 1 should look like this:

// Enter your code below
let name = "danny"
let greeting = "Hi there, \(name)"

Thank you! I thought you had to interpolate the whole value.

No problem, I'm glad I could help! :) Like I said you only have to interpolate variables inside of strings.