Why do apps from Android 2.1 stop working with 2.2?

Posted by poeschlorn on Stack Overflow See other posts from Stack Overflow or by poeschlorn
Published on 2010-05-27T08:47:50Z Indexed on 2010/05/27 9:01 UTC
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android

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android-2.2

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android-version

Hi guys, I've just updated my nexus one to 2.2. Now all of my (own and some from the market) apps throw exceptions and were closed.

It's weird, in the app I'm developing atm, there it displays only my start page with buttons, but when I tap on one button to fire an intent to another activity my app gets closed with an exception.

Yesterday before the update everything worked fine.

The same thing in my emulator:

I have two devices, one with API level 7 and one with level 8. Level 7 worked fine, but level 8 killed my app :(

What is the problem and how can I solve this? I'm desperatly trying to get it working again :(

I hope someone can help me fixing this

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