Question

I am using the following code to instantiate the view SenderPlayerViewController and pass the object “session” :

- (void)session:(GKSession *)session peer:(NSString *)peerID didChangeState: GKPeerConnectionState)state {
switch (state) {
    case GKPeerStateConnected:
        NSLog(@"Connected Central");
        if ([settings.playerType isEqualToString:@"SENDER"]){                 
            SenderPlayerViewController *myViewController = [[UIStoryboard storyboardWithName:@"MainStoryboard" bundle:NULL] instantiateViewControllerWithIdentifier:@"SenderPlayerViewController"];
            [self.navigationController pushViewController:myViewController animated:YES];
            myViewController.currentSession=session;

        }

        break;            
    case GKPeerStateDisconnected:
        NSLog(@"Disconnected Central");
        self.currentSession = nil;
        break;
}   
}

The header file of view SenderPlayerViewController is :

@interface CentralViewController : UIViewController {
Settings *settings;}
@property (nonatomic, copy) GKSession *currentSession;

@end       

When the code is executed i get the following error :

[GKSession copyWithZone:]: unrecognized selector sent to instance 0x9661200

Can you please help!

Thanks in advance!

Answer 1

@property (nonatomic, copy) GKSession *currentSession;

is wrong. GKSession is not a copiable object. So you should just grab a reference to it by retaining:

@property (nonatomic, retain) GKSession *currentSession;