ios - Xcode: "Scene is unreachable due to lack of entry points" but can't find it

Question

Xcode 4.5.2 gives me the following warning:

Unsupported Configuration    
Scene is unreachable due to lack of entry points and does not have an identifier 
for runtime access via -instantiateViewControllerWithIdentifier:.

Unfortunately I can't identify the incriminated scene. Selecting the warning in the Issue Navigator doesn't highlight anything in the Storyboard. I have a fairly complicated storyboard (30+ scenes).

Any suggestions?

Answer 1

In your storyboard, select each of the view controller (red arrow in image below) and look at the Storyboard ID field (red oval). None of the Storyboard ID fields should be blank. When you find one that is, that is the culprit.