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

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

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

出现这个错误的缘由是，全局的属性的修饰词写错了，

好比一个view 原本应该用weak和strong 修饰，结果你写成了copy  那么就会出现这个错误

错误：

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

正确：

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

 

 

下面来自外国兄台的回答给你们个参考

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.

 

要实现自定义对象copy，需遵照NSCopying、NSMutableCopying协议，实现copyWithZone、mutableCopyWithZone 方法

 

更多关于copy请看

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