For what its worth, I also have this issue with Catalina 10.15.7 (19H15) and XCode Version 12.1 (12A7403). My issue occurs when I start debugging a swiftUI preview or run a simulator.
rbl
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For people trying to find the answer to this like I struggled to find, I had an old xcode team signing. The team you select when you create your project determines the features / capabilities you can add to your app. Go create a new provisioning in your developer dashboard & assign the capabilities you want in your app to that app provisioning.