-[UITableView copyWithZone:]: unrecognized selector sent to instance 0x7XXXXXX00

-[UITableView copyWithZone:]: unrecognized selector sent to instance 0x7XXXXXX00

-[Class copyWithZone:]: unrecognized selector sent to instance 0x7XXXXXX00

出現這個錯誤的緣由是，全局的屬性的修飾詞寫錯了，

好比一個view 原本應該用weak和strong 修飾，結果你寫成了copy  那麼就會出現這個錯誤

錯誤：

@property (nonatomic,copy) UITableView *tableView;     //tableView;

正確：

@property (nonatomic,strong) UITableView *tableView;     //tableView;

 

 

下面來自外國兄臺的回答給你們個參考

Your -setObj1: method is declared as copy, so it calls -copy on your Class1 object. -copy just calls -copyWithZone:nil. So you either need to implement the NSCopying protocol (which means implementing -copyWithZone:), or change your property from copy to retain.

 

To make your class respond to copyWithZone:, you have to implement the NSCopying protocol in your class. And you must override the copyWithZone: method.

 

要實現自定義對象copy，需遵照NSCopying、NSMutableCopying協議，實現copyWithZone、mutableCopyWithZone 方法

 

更多關於copy請看

https://blog.csdn.net/qq_25639809/article/details/80048843