openRight not opening menu

Hello, I'm new in IOS. I have followed all the instructions but openRight function not working. See below my code.

In app delegate
```

let mainViewController = storyboard.instantiateViewControllerWithIdentifier("ViewController") as! ViewController
let rightViewController = storyboard.instantiateViewControllerWithIdentifier("RightViewController") as! RightViewController
let nvc: UINavigationController = UINavigationController(rootViewController: mainViewController)

let slideMenuController = SlideMenuController(mainViewController:nvc,rightMenuViewController: rightViewController)

slideMenuController.delegate = mainViewController.delegate
SlideMenuOptions.contentViewOpacity = 0
SlideMenuOptions.contentViewScale = 1
SlideMenuOptions.hideStatusBar = false

self.window?.rootViewController = slideMenuController
self.window?.makeKeyAndVisible()
return true
```

In my ViewController
`
// MARK : Actions
@IBAction func slideButtonOnclick(_ sender: Any) {
if self.isRightOpen(){
self.closeRight()
}
else{
print ("OKOK")

self.openRight()
}
}

`

Please need help

Thank you

Start by reproducing the issue from the app delegate setup and the ViewController slideButtonOnclick action shown in the report. Trace whether the button reaches openRight() and compare the configured rightViewController with the library's expected setup; done means tapping the button opens the right menu.

Written by the indexing model from the issue text.