Application failed codesign verification. What do I do?

Question

Xcode gives me this warning when I build the app for release.

Application failed codesign verification. The signature was invalid, or it was not signe

Answer 1

It looks like your target is "Development" but Xcode applied some of distribution settings to it, so the warning simply means your ad-hoc build has no valid AppStore submission certificate. Go to your target settings, choose the Release configuration and uncheck "Validate Built Product" option.