iPhone app crash immediately after update

Question

today my app update it has been released in the store, when updated or downloaded for the first time the app immediately crash on start.

I've tested the app on simulator and on device (the same where I've installed the update from the store) and I never experienced this problem.

My update it has been submitted with Organizer after the archiving, in the Distribute section.

Apple do not perform these types of controls before to release an app?

Anyone experienced a similar problem? I have no idea what could be the cause.. Thank you, Stefano.

Answer 1

Here's the best way to test a production build without deploying to the store:

• Set your build Scheme to "iOS Device"
• Do an Archive build
• Select your archive and click Distribute
• Choose "Save for Enterprise or Ad-Hoc Deployment"
• Pick your code signing cert
• After saving the ipa file, use Apple's iPhone Configuration Utility(*) to install it on your device

You should always perform two tests:

• installing on a blank device after uninstalling your app *and any profiles in Settings -> General -> Profiles"
• installing over the top of the previous version of your app, to make sure any files/preferences/etc are properly converted to the new format

(*) the iPhone Configuration Utility is mostly used for enterprise app deployment, but it's also useful for developers and is available as a free download for mac and windows at support.apple.com. You can also use iTunes instead, but it's convoluted.

As for why your app is crashing? No idea... it could be anything. Standard debugging advice applies.