'Tried to pop to a view controller that doesn't exist.'

Question

I am getting this error when I call my method dismissView. Here is the method stub:

-(IBAction)dismissView
{
    RootViewController *rootController = [[RootViewC         


        

Answer 1

self.navigationController?.present(viewControllers, animated: true, completion: nil)

Answer 2

The -popToViewController is used to pop view controllers OFF the stack, down to one that already exists. Your UINavigationController has a stack of ViewControllers (stored in the viewControllers property), when you popToViewController, you're going to want to pass one of the elements in that array as the first argument.

What you most likely want to do in this case is use -popViewControllerAnimated:, which will remove the top ViewController from the stack

Answer 3

I resolved this by using pushViewController rather than popToViewController

Answer 4

Swift 4

For anyone still looking for a better solution that doesn't involve the UINavigationController stack indexes, which is getting more problematic with bigger navigation stack - here's the easiest way to solve this:

if let destinationViewController = navigationController?.viewControllers
                                                        .filter(
                                      {$0 is DestinationViewController})
                                                        .first {
    navigationController?.popToViewController(destinationViewController, animated: true)
}

Answer 5

The UINavigationController has a stack of ViewControllers which is stored in the viewControllers(NSArray) property. Enumerate to the required ViewController and pop to that ViewController.

Following code should solve the problem.

-(IBAction)dismissView
{
    NSArray *array = self.navigationController.viewControllers;
    for (id controller in array) {
        if ([controller isKindOfClass:[RootViewController class]]) {
            [self.navigationController popToViewController:controller animated:YES];

        }
    }
}