I’ve just archived an update for iCapital and I stumbled upon a weird warning.
It said the following
icon dimensions (0 x 0) don’t meet the size requirements. The icon file must be 57×57 pixels, in .png format
I double checked my build settings and my app icons had the right dimensions. When I searched for the warning on Google, there were a lot of other people who also had the issue since they updated to XCode 4.2 and OSX 10.7.3.
Luckily it’s really easy to fix the issue. You just need to set ‘Compress PNG files’ to NO in your Build Settings and re-archive your app!