How to fix “failed codesign verification” of an iPhone project?

Question

Last night, the iPhone project was built perfectly.

This morning, I installed XCode 3.2.3 in a separate folder. When I open the same project in

Answer 1

For the build warning or archive validation error "Application failed codesign verification", see Apple's complete list of potential causes at the following URL "How do I resolve the error: Application failed codesign verification?"

Best,