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

Posted by Tyler Amend
Tyler Amend
2,236 Points

Syntax and Parameters challenge "Unresolved Identifier"

Hi All,

I'm trying to complete the challenge and run into issues on the third attempt. When I try and pass a parameter to the function I get the error "Unresolved Identifier." As far as I can see it is exactly the same as it was in the lesson. I replicated the issue in Xcode so something is apparently wrong with my code. See below what I have.

func greeting(person: String) {

    println("Hello \(person)")

}

greeting(Tom)

The issue occurs when calling the function.

Thanks for your help!

Tyler Amend
Tyler Amend
2,236 Points

Figured it out. Thanks anyway!

1 Answer

boruch woolstone
boruch woolstone
1,192 Points
boruch woolstone
boruch woolstone
1,192 Points

when you call your greeting function you need to provide a String. you function call should read: greeting("Tom") not greeting(Tom). the quotes indicate to the compiler that Tom is a string not a variable name