iOS Defines Presentation Context warning - what is it?

[tutiplain]

Hi, I keep getting this warning message whenever I compile my project.

Defines Presentation Context not available prior to XCode 4.2

When I click on it, I am taken to one of my app's nib files. There is only a View and a UINavigationController in the nib file. Anyone has any idea what this message means?

Thx!

 

[admanimal]

http://stackoverflow.com/questions/...when-dropping-nav-controller-on-tab-bar-in-ib

 

[tutiplain]

Thx, this solved the issue.