Facebook IOS SDK 3.1.1 与 Xcode 4.5.2 错误

我是 iOS 中 Facebook SDK 的新手。 为什么我在构建项目时遇到此错误...

我只是使用 Facebook SDK ios 教程的基本步骤创建一个新项目。

• 下载Facebook SDK（我用的是3.1.1）
• Xcode（我使用4.5.2）
• 添加“-lsqlite3.0”Other Linker Flags on Build Setting
• 添加FacebookSDK.framework
• 添加 FacebookSDKResources.bundle
• 添加 FBUserSettingsViewResources.bundle

我尝试构建，一切正常..所以我继续在 AppDelegate 上编写基本实现

- (BOOL)application:(UIApplication *)application
            openURL:(NSURL *)url
  sourceApplication:(NSString *)sourceApplication
         annotation:(id)annotation {
    return [FBSession.activeSession handleOpenURL:url];
}

and

#import <FacebookSDK/FacebookSDK.h>

当我尝试构建时，出现错误......这是日志

Undefined symbols for architecture armv7:
  "_OBJC_CLASS_$_ACAccountStore", referenced from:
      objc-class-ref in FacebookSDK(FBSession.o)
  "_ACFacebookAudienceFriends", referenced from:
      -[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
  "_ACFacebookAppIdKey", referenced from:
      -[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
  "_ACAccountTypeIdentifierFacebook", referenced from:
      +[FBSession renewSystemAuthorization] in FacebookSDK(FBSession.o)
  "_ACFacebookAudienceKey", referenced from:
      -[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
  "_ACFacebookAudienceOnlyMe", referenced from:
      -[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
  "_ACFacebookPermissionsKey", referenced from:
      -[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
  "_OBJC_CLASS_$_ASIdentifierManager", referenced from:
      objc-class-ref in FacebookSDK(FBSettings.o)
  "_ACFacebookAudienceEveryone", referenced from:
      -[FBSession authorizeUsingSystemAccountStore:accountType:permissions:defaultAudience:isReauthorize:] in FacebookSDK(FBSession.o)
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我发现这很奇怪，因为我使用相同的 SDK 和相同的设置Scrumptious例如，该示例运行良好..同时我收到此错误...

任何想法？

我得到了答案...Facebook IOS SDK 3.1 需要更多框架才能使用..REQUIREiOS6 上提供“帐户”、“AdSupport”和“社交”框架。因为Facebook SDK 3.1是基于创建的IOS6..

注意：您应该使用OPTIONAL如果您希望您的应用程序也针对旧版本的操作系统构建，请标记 iOS6 特定框架。看起来像这样。