Could not find the entry for configuration for link my app clips on app store connet

1、When I use Xcode12 to submit an app that contains an app clip, an error is reported.The error message is as follows

App Store Connect Operation Error

ERROR ITMS-90834: "Unsupported content. This app contains an app clip. Apps with app clips cannot be submitted at this time."

2、When I created the app in App Store Connect, I couldn’t find the entry to configure the app clip

Are you trying to submit an update to your app? You won't be able to submit app clips to the App Store until iOS 14 is released. I believe support for testing app clips with TestFlight should be available now or soon.

testFlight is now unavailable,Cannot upload ipa.
ERROR ITMS-90834: "Unsupported content. This app contains an app clip. Apps with app clips cannot be submitted at this time."
Could not find the entry for configuration for link my app clips on app store connet
 
 
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