Hello everyone, I am developing a Flutter iOS application that includes a Widget Extension + Live Activity (ActivityKit). The project runs successfully on the iOS simulator when launched directly from Xcode, but it cannot be signed properly via Flutter and I cannot upload the build to App Store Connect due to the following CodeSign error: Command CodeSign failed with a nonzero exit code Provisioning profile "…" doesn't include the entitlement: com.apple.developer.activitykit.allow-third-party-activity This error never goes away no matter what I try. And the main problem is that my App ID does NOT show any ActivityKit or Live Activity capability in the Apple Developer portal → Identifiers → App ID. So I cannot enable it manually. However: Xcode requires this entitlement Flutter requires this entitlement When I add the entitlement manually in the .entitlements file, Xcode says: “This entitlement must be enabled in your Developer account. It cannot be added manually.” So I am stuck in a loop where: Apple Developer portal does not show ActivityKit capability Xcode demands the ActivityKit entitlement Signing fails App Store upload fails And Live Activity is a critical feature of my app What I have already done ✔ “Automatically manage signing” is enabled ✔ Correct Team is selected for both Runner and the Widget Extension ✔ Bundle IDs are correct: com.yksbuddy.app com.yksbuddy.app.TimerWidgetExtension ✔ Deleted Derived Data completely ✔ Tried removing all ActivityKit-related entitlement keys manually ✔ Deleted Pods, reinstalled, rebuilt ✔ App Group settings match between Runner and Extension ✔ The same Live Activity code works perfectly in a clean Xcode-only project ✔ But fails only inside a Flutter project structure ✔ Xcode builds & runs on simulator, but App Store upload always fails due to missing entitlement Core Problem: In my Apple Developer “Identifiers → App ID” page, the Live Activity / ActivityKit capability does NOT appear at all, so I cannot enable: Live Activities ActivityKit Third-party activity entitlement Without being able to enable this capability, I cannot create a valid provisioning profile that includes: com.apple.developer.activitykit.allow-third-party-activity Flutter + Xcode insists this entitlement must exist, but Apple Developer portal does not give any option to enable it.