Brain Tree 未定义的体系结构符号 x86_64：“_OBJC_CLASS_$_Braintree”

Question

我正在我的应用程序中使用 Braintree。但是在从我的服务器获取令牌并尝试初始化 Braintree 对象之后，它显示了以下错误（我正在使用 xCode v.7 和基础 SDK iOS 9.0 以及 PODS），

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

当我删除这段代码时，它可以正常工作，但随后它将控制器显示为 nil，

这是我初始化和呈现控制器的代码，

       strToken = dictResponse[@"braintree_client_token"];


         // If you haven't already, create and retain a `Braintree` instance with the client token.
         // Typically, you only need to do this once per session.
         self.braintree = [Braintree braintreeWithClientToken:strToken];

         // Create a BTDropInViewController
         BTDropInViewController *dropInViewController = [self.braintree dropInViewControllerWithDelegate:self];
         // This is where you might want to customize your Drop in. (See below.)

         // The way you present your BTDropInViewController instance is up to you.
         // In this example, we wrap it in a new, modally presented navigation controller:
         dropInViewController.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel
                                                                                                               target:self
                                                                                                               action:@selector(userDidCancelPayment)];

         UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:dropInViewController];
         [self presentViewController:navigationController animated:YES completion:nil];

Answer 1

终于解决了错误，需要检查 pods 和项目

的编译器标志

Answer 2

将项目（即 Pod 项目）和您自己的项目的 OTHER_LDFLAGS 标志更改为 $(inherited)

Brain Tree 未定义的体系结构符号 x86_64：“_OBJC_CLASS_$_Braintree”

Brain Tree Undefined symbols for architecture x86_64: "_OBJC_CLASS_$_Braintree"

objective-c

braintree

ios