duplicate symbols for architecture i386 clang

Question

I\'ve seen several posts on google and stackoverflow related to this error, I\'ve read all of them but still fetching the problem , I will be glad for a solution. Here is th

Answer 1

Linker errors are always showing a problem regarding to a library usage or import issues.

Sometimes the error happens when you have imported a .m file instead of a .h file.

Please check your code and look for a .m import statement in one of your header files (.h extension), I had a similar issue and 14 duplicate symbol error raised.

Check if you have imported ViewControler.m instead of its .h,So it has to be this way :

    import "ViewController.h"

and your AppDelegate.h should be something like this :

import "UIKit/UIKit.h"
import "ViewController.h"
@interface AppDelegate : UIResponder 
@property (strong, nonatomic) UIWindow *window;
@property (strong,nonatomic) ViewController *mainController;
@end

Always remember to import header files not a .m