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!

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


Foundation framework Challenge task 3 of 3

Task - http://teamtreehouse.com/library/nsdictionary-2 Let's add the year of the album to the 'albumMutable' variable. Where the key is a NSString 'year' and the value is also a NSString '1969'.

I've entered the following code but it gives me the error - "Bummer! The year set is not the correct value"

Is this a bug or have I done this wrong? Thanks

NSDictionary *album = @{@"title":@"Abbey Road", @"artist":@"The Beatles"};
NSMutableDictionary *albumMutable = [NSMutableDictionary dictionaryWithDictionary:album];
[albumMutable setObject:@1969 forKey:@"year"];
NSString *string = [album objectForKey:@"year"];

2 Answers

Holger Liesegang
Holger Liesegang
50,595 Points

Hi Jack, try @"1969" forKey:@"year" instead of @1969, as this is a NSNumber and the question has been kind of "...and the value is also a NSString '1969'.".

Kind Regards Holger

Worked, thanks :)

Same here, thanks