“Variable Undeclared” error when compiling to iOS Device, but not for Simulator

Question

I have an custom UIVIewController that is the base class for other controllers and has an instance of a custom UIView variable that is accessed by inherited the classes.

Answer 1

The error says that _vwHeader undeclared. So try by modifying the code in:

CustomViewController.m

    #import "CustomViewController.h"
    @implementation CustomViewController

    - (void)loadView
    {
        [super loadView];
        if(!_vwHeader)
        {
           _vwHeader = [[UIView alloc]init];
        }
        [_vwHeader setHidden:NO];
    }

    @end