FBSDKLoginManager：架构x86_64 +链接器命令的未定义符号失败，退出代码为1 [英] FBSDKLoginManager: undefined symbols for architecture x86_64 + linker command failed with exit code 1

问题描述

我刚刚将Facebook iOS SDK升级到v.4.0.1并且我收到了以下错误：

I just upgraded Facebook iOS SDK to v.4.0.1 and I got these errors:

Undefined symbols for architecture x86_64:
  "_OBJC_CLASS_$_FBSDKLoginManager", referenced from:
      objc-class-ref in Controller1.o
      objc-class-ref in AppDelegate.o
      objc-class-ref in Controller2.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我已经尝试更改链接器：使用 -all_load 我得到了相同的错误，而使用 -force_load 它变为ld：找不到文件：-fobjc-arc。任何解决方案？

I already tried to change linkers: with -all_load I get the same error, while with -force_load it becomes "ld: file not found: -fobjc-arc". Any solutions?

推荐答案

我遇到了同样的问题。如果您要将Facebook登录添加到您的应用程序（我认为您是这样），您还需要将 FBSDKLoginKit.framework 文件拖到添加<的Xcode项目中/ strong>到 FBSDKCoreKit.framework文件。

I ran into the same problem. If you're adding Facebook Login to your app (which I presume you are) you also need to drag the FBSDKLoginKit.framework file into your Xcode project in addition to the FBSDKCoreKit.framework file.

Facebook的SDK入门页面上的当前说明忘记提及这个。在版本< SDK的4个，只有一个文件可以拖入你的项目。

The current instructions on Facebook's SDK Getting Started page forget to mention this. In version < 4 of the SDK, there was just one file to drag in to your project.

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