Entitlements are not valid

Question

Recently, I have upgraded my iPhone SDK OS from version 2.2.1 to 3.0 version. After that, while building my application, I get an error that the provisioning profile has exp

Answer 1

I got bit by this as well and found the answer in Ad-Hoc Apps and Entitlements.

You may need to make sure the path to your Entitlements.plist file is entered in your project settings under "Code Signing Entitlements".