My Android App shows as “this item is not compatible with your device”

Question

I just published an update to my app in the market. I then tried to bring it up on the market on my Nexus One running 2.2.2. I could not find it in the market on the phone

Answer 1

Another possible reason:

I had this problem when I published an app, so I monkied around with it until I figured it out. When I disabled copy protection on my app, suddenly it was compatible with my device (Sony Xperia Play) and I was able to install through the android market.

Copy protection is now deprecated and is being replaced with a new licensing feature, so assuming licensing doens't have the same bug this problem will in theory be phased out. For those affected now, I have found a potential solution but it requires an unlocked bootloader to clear your cache partition:

http://forum.xda-developers.com/showpost.php?p=11626645&postcount=425

So if you are a developer and some people can't see your app, disable copy protection and use licensing instead. I also suggest using the Android SDK built in ProGuard feature to obfuscate (scramble) your code to make it harder to reverse engineer.