In interface builder I select the Tab Bar Controller item. The inspector shows me a list of associated view controllers. For any strange reason, I can not define anywhere the exact name for an view controller. I have an DetailsViewController and an SetupViewController. However, I can only select generic names such as "Navigation View controller" and this kind of stuff. But I can't put these exact view controllers there.
I also created two View Controller items and associated these with the appropriate classes. Anyways, no way to hook these up with the tabs. What's the trick?