App compiling but not working in a 2nd generation iPod Touch (4.2.1)

Question

I'm working on an app which works fine in an iPhone4. I'm trying to run it in a 2nd generation iPod Touch, but doesn't work, xCode shows a message of "Finished running appName on iPodTouch2" after compilation without errors and warnings.

How can I know the reason it's not working or which framework (AVFoundation, CoreVideo, CoreMedia, AudioToolbox, MediaPlayer, CoreLocation, etc...) is not compatible with it?

Answer 1

This has been answered many times on this site. But to sum-up: Add armv6 to device architectures and remove armv7 from the required device capabilities.

Here is a link to an answer with screenshots of the steps.