Expo React Native IOS TestFlight. (Errors occurred in the app thinning process)

Question

When I try to deploy my application on the Apple test flight I get this email from apple.

While processing your iOS app, xxxxxxx 1.0.149(1), errors occurred in the app thinning process, and your app couldn’t be thinned. If your app contains bitcode, bitcode processing may have failed. Because of these errors, this build of your app will not be able to be submitted for review or placed on the App Store. For information that may help resolve this issue, see Tech Note 2432.

But the problem was I did deploy this application day before without any issues using Transporter. I spend more than 20hr searching for answers for this issue but had no luck.

Can someone guide me on this issue?

Thanks.

Lakisha

To enable/disable bitcode support go to Project > Build Settings > search for 'bitcode' in the searchfield > set to YES/NO. try to disable it then upload without bitcode – Timberwork

Is the above possible for an app build using React native? The above looks like it's specific to Xcode builds? – Latinity

Answer 1

Check it this link for more understanding.

https://forums.expo.dev/t/expo-managed-app-cant-get-submitted-to-apple-appstore-due-to-app-thinning/62231

https://github.com/expo/expo-cli/issues/4253

Teeming

Answer 2

Rebuilt and submitted with Classic expo build:ios and now it's approved and working.

I was facing the same issue yesterday and although I tried enable/disable bitcode, expo build was failing after added bitcode. I tried eas build too .. it's still rejecting from submission with app thinning error.

Preiser