flutter build ipa Failure Cause and TestFlight Deployment with --no-codesign + API Key
When managing Flutter iOS apps across multiple Apple accounts, you may find that make testflight works perfectly in one project but the same Makefile fails in another. Here is a case I ran into today. Symptoms Error (Xcode): No signing certificate "iOS Development" found: No "iOS Development" signing certificate matching team ID "XXXXXXXX" with a private key was found. Running flutter build ipa fails with this error. The Distribution certificate is in the Keychain, but it says the Development certificate is missing. ...