storyboard has question marks for every image after I imported into xcassets

Question

all images in my storyboard are now ? images. This happened after I imported all media assets into a new .xcassets structure. The app runs fine and the images show when the app runs, but what can I do to restore them in the storyboard?

Answer 1

Remove the .png extension from the image names in the storyboard. Xcode5 now uses the image name, not the filename.

Answer 2

Try first to do a clean build. In a project including git repo I was facing this problem. It solved each time by just by clean building the folder:

⇧⌘K
or
Product-> Clean build folder