iPhone 3.0 GM Seed Installation

I have found a problem with building in XCode after installing the SDK for the iPhone 3.0 GM Seed on top of the iPhone 3.0 Beta 5 release. When doing a build: Command + Enter, for a project built for iPhone 3.0 Beta 5, an error message pops up that indicates the developer certificate has been added, modified or deleted.

Solution: You have to go back to the target, and then toggle the Code Signing Identity->Any iPhone OS Device to iPhone Developer.

This might be because I had XCode running while doing the installation of the GM Seed and had to use the ‘kill’ terminal command.