iOS Builds fail in Xcode with b21

When I build my project in Unity 5 b18 it builds in Xcode with no errors. When I build it in Unity 5 b21 and build in Xcode it fails. I use three Prime31 plugins: iOS Game Center, iOS Game Center Turn Based Multiplayer, and iOS Store Kit. All of them are on the latest version.

Here are the error messages I get in Xcode:

Undefined symbols for architecture armv7:

"_OBJC_CLASS_$_GKTurnBasedMatch", referenced from:

l_OBJC_$_CATEGORY_GKTurnBasedMatch_$_JSON in libGameCenterPlugin.a(GameCenterSerializationHelpers.o)

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKTurnBasedParticipant", referenced from:

l_OBJC_$_CATEGORY_GKTurnBasedParticipant_$_JSON in libGameCenterPlugin.a(GameCenterSerializationHelpers.o)

"_OBJC_CLASS_$_GKVoiceChatService", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

"_OBJC_CLASS_$_GKVoiceChat", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

"_OBJC_CLASS_$_GKFriendRequestComposeViewController", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

"_OBJC_CLASS_$_GKMatchmakerViewController", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

"_GKPlayerAuthenticationDidChangeNotificationName", referenced from:

-[GameCenterManager init] in libGameCenterPlugin.a(GameCenterManager.o)

-[GameCenterTurnBasedManager init] in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKScoreChallenge", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterSerializationHelpers.o)

"_OBJC_CLASS_$_GKMatchRequest", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKTurnBasedMatchmakerViewController", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKAchievementDescription", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

"_OBJC_CLASS_$_GKAchievementViewController", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

"_OBJC_CLASS_$_GKAchievementChallenge", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterSerializationHelpers.o)

"_OBJC_CLASS_$_GKAchievement", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKChallenge", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

(maybe you meant: _OBJC_CLASS_$_GKChallengeJSONDeserializer)

"_OBJC_CLASS_$_GKLocalPlayer", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKLeaderboardViewController", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

"_OBJC_CLASS_$_GKPlayer", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

"_OBJC_CLASS_$_GKLeaderboard", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

"_OBJC_CLASS_$_GKTurnBasedEventHandler", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKChallengeEventHandler", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

"_OBJC_CLASS_$_GKScore", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

objc-class-ref in libGameCenterPlugin.a(GameCenterTurnBasedManager.o)

"_OBJC_CLASS_$_GKMatchmaker", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterMultiplayer.o)

"_OBJC_CLASS_$_GKGameCenterViewController", referenced from:

objc-class-ref in libGameCenterPlugin.a(GameCenterManager.o)

ld: symbol(s) not found for architecture armv7

clang: error: linker command failed with exit code 1 (use -v to see invocation)

 

see if you have included the proper libraries associated with these methods. If you do, try deleting and re-importing them manually. I faced similar problem in beta17 and adding them manually worked. I am not having that problem with beta21 though.

 

Hello!!

I have similar error before, (I think this error occurs because unity integrate framework system for iOS)!

Just set options for libGameCenterPlugin.a like in the image

 

Yeah I finally found a fix. I did this step here ( didn't do it alone though to see if it does something ) and I also clicked a fix button in Xcode having to do with something that wasn't getting added to a plist file.

It was an option to fix the issue that appeared where this red box is in my image.