when I load my application it shows a warning message that
\"Could not load the \"\" image referenced from a nib in the bundle with identifier \">
PROBLEM
This happened to me seemingly out of the blue on a tab bar controller with icons for each tab. The storyboard was still showing my image icons and the assets existed with the expected names.
MY FIX
Select the tab bar icons in their respective view controller and reassign the image like you did the first time.