you need a paid Apple Developer account to use the com.apple.developer.applesignin entitlement. Free accounts don’t support advanced entitlements like Apple Sign-In. Without a paid account, your provisioning profile won’t include this capability, so the build will fail. If you don’t have a paid account, you’ll need to either remove Apple Sign-In from your project or upgrade to a paid account to enable this entitlement and build the app successfully.