I use this Tutorial
	
	
		
			
			
				
					
						
							 www.b4x.com
				
			
		
	
i am able to log in and send Score
						
					
					www.b4x.com
				
			
		
	
i am able to log in and send Score
when try RequestScores i get this error message (i am sure that i use correct Leaderboard id)
	
	
	
	
	
	
	
		
			
			
			
			
			
		
	
	
	
		
	
	
		
	
also when try to use this code
	
	
	
	
	
	
	
		
			
			
			
			
			
		
	
	
	
		
	
	
		
	
LeaderBoard Show with no Scores Found message ,even after submit my score successfully
			
			GameCenter
iGameCenter library provides access to Apple's Game Center services. Currently only the leaderboard (high scores) feature is implemented.    This service requires some configuration: 1. You must use an explicit app id (without wildcards). 2. Must use a development certificate and provision...
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					www.b4x.com
				when try RequestScores i get this error message (i am sure that i use correct Leaderboard id)
			
				B4X:
			
		
		
		<B4IExceptionWrapper: Error Domain=GKErrorDomain Code=17 "The requested operations could not be completed because one or more parameters are invalid." UserInfo={GKServerStatusCode=5053, NSLocalizedDescription=The requested operations could not be completed because one or more parameters are invalid., NSUnderlyingError=0x283f81ef0 {Error Domain=GKServerErrorDomain Code=5053 "status = 5053, Leaderboard does not exist: 56053816 for game: "" ()" UserInfo={GKServerStatusCode=5053, NSLocalizedFailureReason=status = 5053, Leaderboard does not exist: 56053816 for game: "" ()}}}>
			
				B4X:
			
		
		
		Sub ShowLeaderboard
    Dim vc As NativeObject
    vc = vc.Initialize("GKGameCenterViewController").RunMethod("new", Null)
    vc.SetField("leaderboardCategory",BoardId)
    vc.SetField("viewState", 0) '0 = leadboards
    Dim del As NativeObject
    del = del.Initialize("B4IGameCenterViewControllerDelegate").RunMethod("new", Null)
    vc.SetField("gameCenterDelegate", del)
    Dim no As NativeObject = SPage1
    no.RunMethod("presentViewController:animated:completion:", Array(vc, True, Null))
End Sub
#if OBJC
@end
@interface B4IGameCenterViewControllerDelegate :NSObject<GKGameCenterControllerDelegate>
@end
@implementation B4IGameCenterViewControllerDelegate
- (void)gameCenterViewControllerDidFinish:(GKGameCenterViewController *)gameCenterViewController {
   [gameCenterViewController dismissViewControllerAnimated:YES completion:nil];
}
#End IfLeaderBoard Show with no Scores Found message ,even after submit my score successfully
 
				 
 
		 
 
		 
 
		 
 
		