"This game is not recognized by game center." iPhone Development

Question

There are already a couple of questions on this but I followed their steps to solve it and it doesn't seem to work for me. Here's what I have done:
1. I double checked to have the bundle identifier in the xcode project to be the exact same as the provisioning profile found on the provisioning portal (it also says Game Center is enabled). No wildcards.
2. I have logged in using a sandboxed account to gamecenter (made 2 accounts incase one wasn't sandbox). I did see the word "sandbox" with some numbers/letters on the top left while signing up for an account, so I'm 100% sure I have a sandboxed account. Tried 2 different sandbox accounts. Tried on 2 different devices (ipad/iphone). Also tried on the iPhone simulator.
3. I have deleted my app from my iPhone many times and tried it again.

I'm running 4.3/xcode 4 on iPhone + iPad. I'm still receiving the message. Any help would be appreciated. Thanks!

Answer 1

From memory (I battled with this recently)…

In addition to what you've already done, you have to setup your app (even if it's using a fake bundle ID) in ITC (iTunes Connect). This means you need to put in a name, category, a screenshot and a bunch of other stuff (you can just put dummy data in there for testing purposes). Then you need to create a version of your app, then enable Game Center on that version.

There might have been a few other important steps that I've forgotten, but in between the voodoo dancing and making sacrifices to the gods of iOS etc., that's all I can recall.

Answer 2

Deleting the old app from your device can sometimes help too. Looks like it stores some data with an app and will try to login to actual Game Center instead of Sandbox Mode. This solved my problem when trying to add Game Center in an update.