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I created this code for game center Leaderboards, and I always get Thread 1 signal Sigabrt. The NSLOG always says this :

2014-04-15 15:27:28.441 GameCenter[38225:60b] -[GKGameCenterViewController setLeaderboardDelegate:]: unrecognized selector sent to instance 0xb48dd90
2014-04-15 15:27:28.442 GameCenter[38225:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[GKGameCenterViewController setLeaderboardDelegate:]: unrecognized selector sent to instance 0xb48dd90'
*** First throw call stack:

below a screenshot of the code i have for implementing the Leaderboard:

Or/And please look at this question over here: https://stackoverflow.com/questions/23068184/game-center-leaderboard-doesnt-work-in-xcode

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Juliane Kakoli
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  • Your first warning is the problem - your leaderboardController isn't a [GKLeaderboardViewController](https://developer.apple.com/library/ios/documentation/GameKit/Reference/GKLeaderboardViewController_Ref/Reference/Reference.html), but is a [GKGameCenterViewController](https://developer.apple.com/library/ios/documentation/GameKit/Reference/GKGameCenterViewController_Ref/Reference/Reference.html#//apple_ref/occ/cl/GKGameCenterViewController). GKGameCenterViewController doesn't have a leaderboardDelegate property. – thegrinner Apr 15 '14 at 13:40
  • @thegrinner and could you please look at http://stackoverflow.com/questions/23068184/game-center-leaderboard-doesnt-work-in-xcode? Thanks! – Juliane Kakoli Apr 15 '14 at 14:16

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