unrecognized selector sent to instance

Question

In my view controller I call with a reference to game, which is an istance of Game class

score.text = [NSString stringWithFormat:@"%d", [game score]];

Game has this:

int score
@property (nonatomic, readwrite) int *score ;

son normally score has a getter. Game.h is included in ViewController.h

Why do I get "unrecognized selector sent to instance"?

Answer 1

Did you synthesize it in your implementation?

@synthesize score;

Also, you do not want a pointer to an int, but an int itself. Remove the '*'.

Thirdly, I'm assuming score.text is setting the text for a UILabel or similar? And is different from Game's score.

Another check you can use is to make use of dot-notation. If the property is not properly set, you will get an error rather than a warning. I.e. game.score instead of [game score].

Answer 2

Not sure, if thats a typo, but the property declaration of score doesn't need an asterisk, as its a primitive type, so that could definitely be the issue.

Answer 3

score.text = [NSString stringWithFormat:@"%d", [game score]];//u can use %i instead %d

int score

@property (nonatomic, readwrite) int score ;//remove here ur star

or

@property (nonatomic) int score ;//remove here ur star