iPhone Crash with “No Backtrace”

Question

My iPhone app was recently rejected from the App Store \"because it crashes on launch\". However, I cannot reproduce this crash. The app works perfectly on both the simulato

Answer 1

See Technical Note TN2151:Understanding and Analyzing iPhone OS Application Crash Reports. Symbolication would normally help you track down the source of a crash but since there is no backtrace it may not help in this instance.

Don't bother testing on the simulator. The simulator build and the device build are wholly separate compiles for two different pieces of hardware. Just because it runs on simulator tells you nothing about a failure on device.

Remember that Apple will stress test the app by doing things like launching it on iOS4 with other apps eating up most of the memory. You will need to do that as well on your test device.

You will most likely have to wipe your test device back to defaults to replicate the test Apple does. Then open every possible app before launching your own.