“An App ID with bundle identifier X is not available. Please enter a different string” (Xcode 7.3)

Question

After updating to the latest build of Xcode 7.3 (7D175), every time I try to Export for adhoc distribution I get the above error. Everything was working fine up until the up

Answer 1

I had this problem with a project that I've been working on for years, using Xcode 7.3. But one of my colleagues, who cloned the same Xcode project, doesn't have this problem. After trying several different approaches, I downloaded the development certificate from Apple Developer and installed them manually. It works all of a sudden. My guess is Xcode 7.3 messed up with the automatic "fix the problem" feature.