App rejected: strange iPhone crash log

Question

Apple rejected my app two times due to a crash at launch. I have tested it many times on different devices (iPhone 4, iPhone3GS, Simulator, iPad2) and it never crashed.

Answer 1

According to the crash log, it looks like an array out of bounds exception. This means that you accessed an array with an index that doesn't exist. Unfortunately, the most important line (3 iMetroRoma 0x0000426f 0x1000 + 12911 ) is not symbolicated which means you have to go hunting for all your calls to objectAtIndex: and think about whether there's a possibility that an invalid index could be used.