Error Mach-o Linker

Question

I cannot build my project because I keep getting this error. As I understand it, it deals with the tagShift constant, which I use in my code. I would be grateful if anyone could help me solve this problem.

Answer 1

I ran into the same problem sometime and understood the result as:

Here you have a int tagShitpermanent type. Thus, you cannot create constant variables of the type with the same name in two or more classes. Change this variable name tagShitin one of the classes (maybe like tagShift1 or something else) and it will go well.

, .

Answer 2

, TrafficLightG.h .

#include "TrafficLightG.h"

const :

TrafficLightG.h

const int tagShift;

TrafficLightG.m

 const int tagShift = 90;

PS: NSInteger NSUInteger int.