Ios ld:未找到Facebook和Parse架构x86_64的符号

在我尝试构建项目时，不断出现以下错误：

Undefined symbols for architecture x86_64:
"_OBJC_CLASS_$_FBSDKAccessToken", referenced from:
  objc-class-ref in MESignInViewController.o
  objc-class-ref in MEFacebookLoginManager.o
"_OBJC_CLASS_$_FBSDKAppEvents", referenced from:
  objc-class-ref in AppDelegate.o
 "_OBJC_CLASS_$_FBSDKApplicationDelegate", referenced from:
  objc-class-ref in AppDelegate.o
 "_OBJC_CLASS_$_FBSDKGraphRequest", referenced from:
  objc-class-ref in MEFacebookLoginManager.o
 "_OBJC_CLASS_$_FBSDKLoginButton", referenced from:
  objc-class-ref in AppDelegate.o
 "_OBJC_CLASS_$_FBSDKLoginManager", referenced from:
  objc-class-ref in MEFacebookLoginManager.o
 "_OBJC_CLASS_$_PFAnalytics", referenced from:
  objc-class-ref in AppDelegate.o
 "_OBJC_CLASS_$_Parse", referenced from:
  objc-class-ref in AppDelegate.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我已经通过cocoapods安装了Facebook和Parse SDK，下面是我的Podfile的外观：

target 'Ment' do
 pod 'Parse'
 pod 'ParseFacebookUtilsV4'
end

target 'MentTests' do

end

---

你知道怎么回事吗，这真的让我很烦

我敢肯定，如果你使用facebook登录，你也必须添加facebook播客

# facebook
pod 'FBSDKCoreKit'
pod 'FBSDKLoginKit'

或者

pod 'FBSDKShareKit'

要使一切顺利进行，请确保您已遵循以下步骤