I get an error "None of the input catalogs contained a matching launch image" in xCode5-iOS7
Select your project, go to Build Settings, search for AppIcon-2 and change it into AppIcon and you will be fine.
Select project file and then select target in question. In General tab there is in app icons and launch images launch image source should be "Use assets category" 
My LaunchImage file had been deleted and I had to add a new one in my xcassets.
Go to your images.xcassets. If there is no LaunchImage listed on the left, click the plus button at the bottom and navigate to new iOS launch image.