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

Update xCode - these issues normally trigger a thought in my head to update. Normally fixes provisioning issue. Worked for me.