App approved, but crashes

Question

I have made a Windows Phone app (for WP7.1) that uses BackgroundAudio for streaming, nothing too complicated. It was approved and made available for download in the store. However it no longer works, i.e. the app worked in debug+release when run from VS2012, and I assume the .xap I uploaded worked since microsoft approved it (they rejected it once and I was able to reproduce and fix the bugs they reported).

When downloaded the app simply bails on load on WP8 (lumia 820) i.e. flips back to the tiles immediately.

On WP7 (lumia 800) but the playbutton ignores input, however it downloads and displays the playlist, so some kind of functionality+network connection works.

I have tried the basics: installing using the application-deployment tool (app working), running the "Store Test Kit" which reports some slowdowns in the UI animations, but nothing serious (I hope).

Any ideas how to reproduce ".xap approved and downloaded from store but not working" or getting debug info from the phone without VS? Or any other things i can try out?

Answer 1

The very first thing i can tell you is the opening page has some exceptions and that too it doesn't go well with some phones. Seriously there are concerns when a wp7 app is ported on wp8 device and vice-verse. To the extent of my knowledge there might be some binding issues. make sure you got the binding class to be public. And just as @AMR mentioned go the dev center and export the stacktrace. Try resolving them. Moreover if an app get certifies, it doesn't mean it is completely error free. The tests are limited to very coomon errors only.

Answer 2

Every time your app crashes it will be logged and reported on your Windows Phone Dev Center Account. Just go in there and export the details to excel. Get the stack trace and put it in here. Maybe we can help.