iOS Mach-o链接器错误解析

Question

Undefined symbols for architecture x86_64:
  "_BFTaskMultipleExceptionsException", referenced from:
      ___53+[PFObject(Private) deleteAllAsync:withSessionToken:]_block_invoke226 in Parse(PFObject.o)
      ___65+[PFObject(Private) _deepSaveAsync:withCurrentUser:sessionToken:]_block_invoke319 in Parse(PFObject.o)
  "_OBJC_CLASS_$_BFExecutor", referenced from:
      objc-class-ref in Parse(PFObject.o)
      objc-class-ref in Parse(PFFile.o)
      objc-class-ref in Parse(PFFileManager.o)
      objc-class-ref in Parse(PFInstallation.o)
      objc-class-ref in Parse(PFPin.o)
      objc-class-ref in Parse(PFSession.o)
      objc-class-ref in Parse(PFUser.o)
      ...
  "_OBJC_CLASS_$_BFTask", referenced from:
      objc-class-ref in Parse(PFObject.o)
      objc-class-ref in Parse(PFEventuallyPin.o)
      objc-class-ref in Parse(PFFile.o)
      objc-class-ref in Parse(PFFileManager.o)
      objc-class-ref in Parse(PFInstallation.o)
      objc-class-ref in Parse(PFPin.o)
      objc-class-ref in Parse(PFEncoder.o)
      ...
  "_OBJC_CLASS_$_BFTaskCompletionSource", referenced from:
      objc-class-ref in Parse(PFObject.o)
      objc-class-ref in Parse(PFOfflineStore.o)
      objc-class-ref in Parse(BFTask+Private.o)
      objc-class-ref in Parse(PFEventuallyQueue.o)
      objc-class-ref in Parse(PFSQLiteDatabase.o)
      objc-class-ref in Parse(PFTaskHTTPRequestOperation.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

我收到此错误

我使用下面的链接作为参考，我实现了所有框架

Apple Mach-O Linker Error Parse

我的代码在Swift中，我无法找到如何解决该错误。

任何人都可以回复此事吗？

Answer 1

尝试这种方式：

1）如果您使用Facebook SDK，请查看this question。解决方案似乎是：

  

添加到您的AppDelegate.m或其他类之后的常量   导入和实现之前部分：NSString * const   BFTaskMultipleExceptionsException = @＆＃34; BFMultipleExceptionsException＆＃34 ;;

2）检查图书馆搜索路径标记，也许您的项目中不再存在旧参考。

3）在构建设置上的其他链接标记中删除-ObjC标记。