Mach-o Linker Error

Question

I can\'t build my project because I keep getting this error. As I understood it deals with the constant tagShift I\'m using in my code. I would appreciate if anyone could help m

Answer 1

I guess you have included TrafficLightG.h in more than one file.

#include "TrafficLightG.h"

Declare your const in that way:

TrafficLightG.h

const int tagShift;

TrafficLightG.m

 const int tagShift = 90;

PS: use NSInteger or NSUInteger instead of int.