Error: unreachable because it has no entry points

Question

Using Swift I got the error that my "TableViewController" is unreachable because it has no entry points and no runtime access via [UIStoryboard instantiateViewControllerWithIdentifier].

In my View Controller class there is the suggestion to fix it while changing instantiateViewController(withIdentfier...) in instantiateViewController(withIdentifier).

Shall I do this or how do I fix this?

Answer 1

I fixed this by renaming the default "ViewController.swift" as "MainViewController.swift". Perhaps this is a warning to the user to insure everything is defined as you expect it to be.

I experienced this issue again and backtracked, eventually clearing the storyboard and then deleting it entirely from the project and the issue was still present. Relaunching Xcode fixed the issue.

Answer 2

For me I just had a view controller that wasn't attached to anything, i.e. I had a UITabBar Controller, and a few View Controllers attached to the TabBar, but there was one View Controller that was stranded, with out any connection to another view.

From my experience, the error message was,

“View Controller“ is unreachable because it has no entry points, and no identifier for runtime access via -[UIStoryboard instantiateViewControllerWithIdentifier:].

The View controller name was the text in quotes, i.e. “View Controller“.

Hope this helped someone!

Answer 3

When you have 2 or more navigation controllers(embedded UIVIewcontrollers) or 2 or more UIViewcontrollers in your storyboard. Xcode may be looking for a startup view controller. You can mark either of one of them as startupviewcontroller, just by selecting the "is initial viewcontroller"

OR you can give a unique storyboard id for each and every UInavigationcontrollers or UIViewcontrollers or UITabviewcontrollers in your storyboard.

Answer 4

Set Your TableViewController an Initial View Controller from the Storyboard

Answer 5

I had same issue that to solve this problem I opened the Document Outline then realized that I have accidentally deleted the Segue between two pages.

Steps:

1) Editor> Show Document Outline document outline

2) Check the Document Outline for any copy-paste, segue error or etc. screenshot

Answer 6

You need to mark a viewController in your Storyboard and set it to the initial viewController. You do this under the Attributes Inspector. This means that you set which viewController shall open when you start your application.