I think you have to download the Developer app in appstore on your Mac or iPhone, and do the purchase from there in order to work.
besix
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You should check you dependencies as well, in my case i faced the same issue while building an eccomerce app, and upon uploading the app to app store connect i got the same message, whilst my app has nothing to do with the use of camera, however im using stripe as a payment processor service, and stripe has a component where you can scan a card to process the payment and therefore the message.