google calendar API dans l'application iPhone!

Question

Je viens d'ajouter gcal à mon projet selon ce tutoriel http://www.youtube.com/watch?v=it_9H0GxRNI mais 12 erreurs est apparu:

"_SecItemAdd", referenced from: 
      -[GDataOAuthKeychain setPassword:forService:account:error:] in GDataOAuthViewControllerTouch.o 
     "_kSecMatchLimit", referenced from: 
      _kSecMatchLimit$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_kSecClassGenericPassword", referenced from: 
      _kSecClassGenericPassword$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_SecItemDelete", referenced from: 
      -[GDataOAuthKeychain removePasswordForService:account:error:] in GDataOAuthViewControllerTouch.o 
     "_kSecAttrGeneric", referenced from: 
      _kSecAttrGeneric$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_SecItemCopyMatching", referenced from: 
      -[GDataOAuthKeychain passwordForService:account:error:] in GDataOAuthViewControllerTouch.o 
     "_kSecValueData", referenced from: 
      _kSecValueData$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_kSecReturnData", referenced from: 
      _kSecReturnData$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_kSecAttrAccount", referenced from: 
      _kSecAttrAccount$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_kSecClass", referenced from: 
      _kSecClass$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_kSecAttrService", referenced from: 
      _kSecAttrService$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
     "_kSecMatchLimitOne", referenced from: 
      _kSecMatchLimitOne$non_lazy_ptr in GDataOAuthViewControllerTouch.o 
    ld: symbol(s) not found 
    collect2: ld returned 1 exit status 
Build failed (12 errors, 1 warning) 

Et aucune erreur apparaît dans la console! quel est le problème? :(

Answer 1

Ces symboles sont définis dans Security.framework si juste ajouter à votre projet.