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iOS Build a Simple iPhone App with Swift 2.0 Getting Started with iOS Development Swift Recap Part 1

When I run this code, it tells me "Make sure you're declaring an instance method named description that returns a String

The title, basically.

    struct Tag {
        let name: String
    struct Post {
        var title : String;
        var author : String;
        var tag : Tag;
        func description () -> String{
            return "\(title) by \(author). Filed under \(tag.name)"

    let firstPost = Post(title : "iOSDevelopment", author : "Apple", tag : Tag(name : "swift"));
    let postDescription = firstPost.description();

1 Answer

Jason Anders
Jason Anders
Treehouse Moderator 145,631 Points

Hi Yao,

While technically not incorrect syntax, the code checker does not like the space between description and the ().

Just close that up and the challenge passes.

func description() -> String{

Keep Coding! :) :dizzy: