resignFirstResponder not working


Hi all!

New, and relatively inexperienced at coding (hence the use of the BNR book).

Im looking for help on my whereami app. As soon as I enter text and hit the return button on the keyboard I get a break right at the line of code

[textField resignFirstResponder];

The text field freezes completely. The cursor is visible, as well as the text that I entered, but I cannot click on it at all, or the keyboard. I looked, and it looks like all the connections are correct, as far as the text box outlet is concerned. I know it is a silly mistake that I am just overlooking.

Any hints at all?