I'm trying to run an app on a 3G device. Xcode says that the app has "Finished running on the iPhone" but the app will not deploy. I think I have the architectures configured correctly (see image below)
any help would be great,
thanks
I figured this out finally. In the Info.plist there's a "Required device capabilities" setting that was set to armv7. I was aware of the armv6 and armv7 requirements in the target build settings for the 3G model but not in the plist. here's a screenshot. hope it helps anyone else stuck with something similar:
Your configuration looks fine. I’ve seen this before; removing the device from the Organizer (selecting it in the list on the left of the “Devices” tab and clicking the “Remove” button at the bottom of the main panel), restarting Xcode, and connecting it again seemed to fix the problem.
In my case, the architecture in the target properties was set to Standard (armv7). I had to add the armv6 architecture and it worked
Check "Required device capabilities" in settings. I had problem with accelerometr set to OFF. When I had remove this line, everything start working.
Same problem on 3G (iOS4) and 4GS (iOS5)
Each .xib file and core data model also has a deployment property. It's in the identity inspector. Changing it worked for me.
Make sure you have it setup like this in the target build settings, not just the project build settings.
Restarting the device usually fixes this one for me.
Under Build Settings at the top, you'll not a selection named 'Levels'. If you select this you may find that the Architecture and/or your Code Signing Identity is out of step with the settings that were showing under the 'Combined' setting. I had a case where an App was building successfully and simply not deploying on the phone. When I select "Levels" the values under my App target for these Build settings was incorrect. Once I set them here it deployed to the device fine.
Hope that helps.
来源：https://stackoverflow.com/questions/8127343/3g-iphone-device-finished-running-but-app-wont-load