StoreSearch CRASH

I ran the app after adding the code at the bottom of page 38 (PDF). It was working up until then. I can’t understand the stuff in the console. No warnings or errors. It crashes when I type something into the search bar and press search.

Console says: Terminating app due to uncaught exception ‘NSUnknownKeyException’, reason: ‘[UITableViewCell 0x7fec7a819800 setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key artistNameLabel.’

That looks like there is no artistNameLabel property on the table view cell, but the outlet connection thinks there is one.