Objective-c JSON模型

Question

我按照说明将 JSONModel 安装到我的项目中。但是，我遇到了 Apple Mach - O Linker Error 的问题。

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

我也添加了 SystemConfiguration.framework。

请帮助我。谢谢。

Answer 1

将CoreData.framework 添加到您的目标。