I added this to my game.m
-(IBAction)viewscores:(SPEvent*)event{
GKLeaderboardViewController *leaderBoardCont = [[GKLeaderboardViewController alloc] init];
if (leaderBoardCont) {
leaderBoardCont.category=@"1S";
leaderBoardCont.timeScope=GKLeaderboardTimeScopeWeek;
leaderBoardCont.leaderboardDelegate=self;
[self presentModalViewController:leaderBoardCont animated:YES];}}
And this to my app delegate.m
-(void) leaderboardViewControllerDidFinish:
(GKLeaderboardViewController *)viewController {
[self dismissModalViewControllerAnimated:YES];
viewController = nil;
}
Still get error, could you please make your post simpler?