Property with #39;retain (or strong)#39; attribute must be of object type

AFNetworking 2.0 当Deployment Target 低于6.0时，AFURLConnectionOperation.h,AFURLSessionManager.h

@property (nonatomic, strong) dispatch_queue_t completionQueue;

因为sdk低于6.0时，dispatch_queue_t  ARC没有托管，出现提示错误

Property with 'retain (or strong)' attribute must be of object type

改动为

#if OS_OBJECT_USE_OBJC @property (nonatomic, strong) dispatch_queue_t completionQueue; #else @property (nonatomic, assign) dispatch_queue_t completionQueue; #endif

总结

以上是生活随笔为你收集整理的Property with #39;retain (or strong)#39; attribute must be of object type的全部内容，希望文章能够帮你解决所遇到的问题。

如果觉得生活随笔网站内容还不错，欢迎将生活随笔推荐给好友。