Hi All, Oh dear! Looks like I messed up! Followed MGoBlue's How-to to the T, yet the build fails :( 1) I get "expected filename" in the import "GameCenterManager.h" line 2) I get "cannot find protocol declaration for GameCenterManagerDelegate" Any help would be greatly appreciated! Best wishes, Dan THIS IS WHAT IT LOOKS LIKE: #import “GameCenterManager.h” @class GameCenterManager; @interface BT_viewController : UIViewController <UIAlertViewDelegate, ADBannerViewDelegate, ADBannerViewDelegate, UIActionSheetDelegate, GKLeaderboardViewControllerDelegate, GKAchievementViewControllerDelegate, GameCenterManagerDelegate>{

MGoBlue had this problem in the first version of the tutorial which you must be using. There is a more updated version on his website. The " marks you're using are curly not straight. Go through the code you pasted into Xcode from MGoBlue's tutorial and just delete the " marks and retype them. You'll notice the difference.

Hi Shak77, Thanks so much for your help. You were absolutely right, the curly marks needed to be replaced! However, it still fails to build and now I have the following issues: Expected external declaration Expected identifier or } Initializer element is not compile-time constant All these issues (7) occur in the BT_screen_quiz.m file in the section below: Again, hope any of you will be able to help. Best regards, Dan //submit score -(void)submitScore{ if(totalPoints > 0) { [self.gameCenterManager reportScore: totalPoints forCategory: self.currentLeaderBoard]; } GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentModalViewController: leaderboardController animated: YES]; } } //show scoreboard -(void)showScoreboard{ GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentModalViewController: leaderboardController animated: YES]; } } //show quiz reward screen

Hmmmm. I'm not great with this. The reason I knew about the curly quotes was because I had that problem a few weeks ago. I would try cleaning Xcode (shift-command-K), then try running in the simulator and see what happens. After that, you need to probably have someone look over your code.

Thanks for the reply, Shak77. I tried cleaning - no success. I'm still hoping someone may have a solution... Best wishes, Dan

Hi Dan You must have a line break after the "//submit score". Like this //submit score -(void)submitScore{ if(totalPoints > 0) { [self.gameCenterManager reportScore: totalPoints forCategory: self.currentLeaderBoard]; } GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentModalViewController: leaderboardController animated: YES]; } } BR/Stefan

Woohoo, thank you Stefan, 3 Errors less! I've only got 3 errors left, in the remaining part of the earlier posted code (see below) those 3 errors are: 1) "Initializer element is not compile-time constant" in [[GKLeaderboardViewController alloc] init]; 2) "Expected identifier or {" red underlined: "if if (leaderboardController != NULL) { 3) "Expected external declaration: }" ({ red underlined) Here the code without the error messages: GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentModalViewController: leaderboardController animated: YES]; } } //show scoreboard -(void)showScoreboard{ GKLeaderboardViewController *leaderboardController = [[GKLeaderboardViewController alloc] init]; if (leaderboardController != NULL) { leaderboardController.category = self.currentLeaderBoard; leaderboardController.timeScope = GKLeaderboardTimeScopeWeek; leaderboardController.leaderboardDelegate = self; [self presentModalViewController: leaderboardController animated: YES]; } } //show quiz reward screen

Wooohoooo, Stefan, it's all sorted!! Thank you so much! It was driving me crazy all day! Everything fine now!! Best wishes, Dan

Great news! I know it's frustrating when your'e so close at it. Glad I could help. Just a heads up -before submitting to App store make sure that you have erased all the test data in your leader board. You do that it in Game Center area att developer.apple.com BR/Stefan

Great Advice, Stefan! Will do. Thanks a lot again! Best wishes, Dan