I recently started using Xcode 4.2 and the iOS 5 simulator. When I update an older version of my app pre-installed in the simulator, it updates the app just fine but the app ico
I ran into a similar problem after renaming the app and adding the Icon files category as described in one of the other answers. No icon would show up in either simulator or device. Tried a clean build as well as restarting simulator and Xcode, no success
The solution for me was to drag the icons from my Resources to the two empty wells under App Icons located under Targets -> Summary. After that my icons showed up in both simulator and device. I´m running Xcode 4.3.1