SlideNavigationController has not been initialized. in didFinishLaunchingWithOptions

[ji3g4m6zo6]

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:@"Main" bundle: nil];
    LeftMenuViewController *leftMenu = (LeftMenuViewController*)[mainStoryboard instantiateViewControllerWithIdentifier: @"LeftMenuViewController"];
    [SlideNavigationController sharedInstance].leftMenu = leftMenu;
    [SlideNavigationController sharedInstance].menuRevealAnimationDuration = .18;
    return YES;
}

When the app runs to ： [SlideNavigationController sharedInstance].leftMenu = leftMenu;

I got the message ：

SlideNavigationController has not been initialized. Either place one in your storyboard or initialize one in code

How can I fix it?

Thanks for your help.

[orenk86]

As the error states, you need to embed the VC which you want to show the menu from, in a UINavigationController, and set it to the SlideNavigationController class...