Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.


Ian Algie
Ian Algie
13,019 Points

Build a simple iPhone app with objective c - array code challenge task 3 of 3

I am having some trouble completing task 3.

My code in ViewController.m looks like this:

import "ViewController.h"

@implementation ViewController

  • (void)viewDidLoad { [super viewDidLoad];

    // Add your code below! self.shoppingList = [[NSArray alloc]initWithObjects: @"toothpaste", @"bread", @"eggs", nil];

    self.shoppingCart = [shoppingList objectAtIndex:2]; }


I am sure it should be working, but I keep getting the following error:

Remember array indexes start at zero. Access the third item in the array and assign it to a string named shoppingCart.

1 Answer

Ian Algie
Ian Algie
13,019 Points

Apologies, sorted it now. I was just missing a second 'self' when referring to the array.