Comment faire pour résoudre ce genre d'erreur?

Question

Iam développer un application.In que basé sur mon requirment-je utiliser le Twitter + OAuth pour partager l'twitter.Iam développer mon application dans l'IOS 3.1.3.I a des erreurs comme

Undefined symbols: 
     ".objc_class_name_OAMutableURLRequest", referenced from: 
      literal-pointer@__OBJC@__cls_refs@OAMutableURLRequest in SA_OAuthTwitterEngine.o 
     ".objc_class_name_OARequestParameter", referenced from: 
      literal-pointer@__OBJC@__cls_refs@OARequestParameter in SA_OAuthTwitterEngine.o 
     "_OBJC_CLASS_$_NSMutableURLRequest", referenced from: 
      _OBJC_CLASS_$_OAMutableURLRequest in libOAuth.a(OAMutableURLRequest.o) 
     "_OBJC_CLASS_$_NSMutableArray", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OAMutableURLRequest.o) 
     "_OBJC_CLASS_$_NSURL", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OAMutableURLRequest.o) 
     ".objc_class_name_OADataFetcher", referenced from: 
      literal-pointer@__OBJC@__cls_refs@OADataFetcher in SA_OAuthTwitterEngine.o 
     "_OBJC_METACLASS_$_NSMutableURLRequest", referenced from: 
      _OBJC_METACLASS_$_OAMutableURLRequest in libOAuth.a(OAMutableURLRequest.o) 
     "__objc_empty_vtable", referenced from: 
      _OBJC_METACLASS_$_OAMutableURLRequest in libOAuth.a(OAMutableURLRequest.o) 
      _OBJC_CLASS_$_OAMutableURLRequest in libOAuth.a(OAMutableURLRequest.o) 
      _OBJC_METACLASS_$_OARequestParameter in libOAuth.a(OARequestParameter.o) 
      _OBJC_CLASS_$_OARequestParameter in libOAuth.a(OARequestParameter.o) 
      _OBJC_METACLASS_$_OADataFetcher in libOAuth.a(OADataFetcher.o) 
      _OBJC_CLASS_$_OADataFetcher in libOAuth.a(OADataFetcher.o) 
      _OBJC_METACLASS_$_OAConsumer in libOAuth.a(OAConsumer.o) 
      _OBJC_CLASS_$_OAConsumer in libOAuth.a(OAConsumer.o) 
      _OBJC_METACLASS_$_OAToken in libOAuth.a(OAToken.o) 
      _OBJC_CLASS_$_OAToken in libOAuth.a(OAToken.o) 
      _OBJC_METACLASS_$_OAServiceTicket in libOAuth.a(OAServiceTicket.o) 
      _OBJC_CLASS_$_OAServiceTicket in libOAuth.a(OAServiceTicket.o) 
      _OBJC_METACLASS_$_OAHMAC_SHA1SignatureProvider in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
      _OBJC_CLASS_$_OAHMAC_SHA1SignatureProvider in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
     "_OBJC_CLASS_$_NSMutableString", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OAMutableURLRequest.o) 
     "_OBJC_METACLASS_$_NSObject", referenced from: 
      _OBJC_METACLASS_$_OAMutableURLRequest in libOAuth.a(OAMutableURLRequest.o) 
      _OBJC_METACLASS_$_OARequestParameter in libOAuth.a(OARequestParameter.o) 
      _OBJC_METACLASS_$_OARequestParameter in libOAuth.a(OARequestParameter.o) 
      _OBJC_METACLASS_$_OADataFetcher in libOAuth.a(OADataFetcher.o) 
      _OBJC_METACLASS_$_OADataFetcher in libOAuth.a(OADataFetcher.o) 
      _OBJC_METACLASS_$_OAConsumer in libOAuth.a(OAConsumer.o) 
      _OBJC_METACLASS_$_OAConsumer in libOAuth.a(OAConsumer.o) 
      _OBJC_METACLASS_$_OAToken in libOAuth.a(OAToken.o) 
      _OBJC_METACLASS_$_OAToken in libOAuth.a(OAToken.o) 
      _OBJC_METACLASS_$_OAServiceTicket in libOAuth.a(OAServiceTicket.o) 
      _OBJC_METACLASS_$_OAServiceTicket in libOAuth.a(OAServiceTicket.o) 
      _OBJC_METACLASS_$_OAHMAC_SHA1SignatureProvider in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
      _OBJC_METACLASS_$_OAHMAC_SHA1SignatureProvider in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
     ".objc_class_name_OAConsumer", referenced from: 
      literal-pointer@__OBJC@__cls_refs@OAConsumer in SA_OAuthTwitterEngine.o 
     "_OBJC_CLASS_$_NSObject", referenced from: 
      _OBJC_CLASS_$_OARequestParameter in libOAuth.a(OARequestParameter.o) 
      _OBJC_CLASS_$_OADataFetcher in libOAuth.a(OADataFetcher.o) 
      _OBJC_CLASS_$_OAConsumer in libOAuth.a(OAConsumer.o) 
      _OBJC_CLASS_$_OAToken in libOAuth.a(OAToken.o) 
      _OBJC_CLASS_$_OAServiceTicket in libOAuth.a(OAServiceTicket.o) 
      _OBJC_CLASS_$_OAHMAC_SHA1SignatureProvider in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
     "_OBJC_CLASS_$_NSURLConnection", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OADataFetcher.o) 
     "_objc_msgSendSuper2", referenced from: 
      -[OAMutableURLRequest dealloc] in libOAuth.a(OAMutableURLRequest.o) 
      -[OAMutableURLRequest initWithURL:consumer:token:realm:signatureProvider:nonce:timestamp:] in libOAuth.a(OAMutableURLRequest.o) 
      -[OAMutableURLRequest initWithURL:consumer:token:realm:signatureProvider:] in libOAuth.a(OAMutableURLRequest.o) 
      -[OARequestParameter dealloc] in libOAuth.a(OARequestParameter.o) 
      -[OARequestParameter initWithName:value:] in libOAuth.a(OARequestParameter.o) 
      -[OAConsumer dealloc] in libOAuth.a(OAConsumer.o) 
      -[OAConsumer initWithKey:secret:] in libOAuth.a(OAConsumer.o) 
      -[OAToken dealloc] in libOAuth.a(OAToken.o) 
      -[OAToken initWithUserDefaultsUsingServiceProviderName:prefix:] in libOAuth.a(OAToken.o) 
      -[OAToken initWithKey:secret:] in libOAuth.a(OAToken.o) 
      -[OAToken init] in libOAuth.a(OAToken.o) 
      -[OAToken initWithHTTPResponseBody:] in libOAuth.a(OAToken.o) 
      -[OAServiceTicket dealloc] in libOAuth.a(OAServiceTicket.o) 
      -[OAServiceTicket initWithRequest:response:didSucceed:] in libOAuth.a(OAServiceTicket.o) 
     "_OBJC_CLASS_$_NSString", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OAMutableURLRequest.o) 
      __objc_classrefs__DATA@0 in libOAuth.a(OARequestParameter.o) 
      __objc_classrefs__DATA@0 in libOAuth.a(OAToken.o) 
      __objc_classrefs__DATA@0 in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
     "_OBJC_CLASS_$_NSData", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OAHMAC_SHA1SignatureProvider.o) 
     ".objc_class_name_OAToken", referenced from: 
      literal-pointer@__OBJC@__cls_refs@OAToken in SA_OAuthTwitterEngine.o 
     "_OBJC_CLASS_$_NSUserDefaults", referenced from: 
      __objc_classrefs__DATA@0 in libOAuth.a(OAToken.o) 
    ld: symbol(s) not found 
    collect2: ld returned 1 exit status 

donc s'il vous plaît aidez-moi comment pour résoudre ces erreurs.

Answer 1

Vous n'avez pas ajouté la bibliothèque oAuth dans votre projet. Ajoutez la bibliothèque qui doit être présente dans l'application de démonstration fournie par l'API, puis réessayez.