An App ID with Identifier 'com.example.app.extention' is not available. Please enter a different string

Question

I have tried to add extensions to my iOS app, both a today extension and an Apple Watch app. My app has been completed however when submitting my archive I got the error bas

Answer 1

I had almost the same problem, i was using Xcode 7.3 and trying to compile it but the build failed all the time, so the problem was for me that i needed to make a developer provisions profile and an appstore provisions profile for the same app so i could use fastlane to release it and build it in xcode.

After this i did the following:

1. Open Xcode
2. Xcode preferences
3. Open team
4. Download all missing profiles
5. Clean
6. Build
7. Run fastlane