Error deploying IPA to TestFlight ('dns-proxy' key is not supported)

#1

Generate build with exp build:ios (tried with -c).
Try to deploy it to the testflight and get an error in Application Loader:

ERROR ITMS-90046: "Invalid Code Signing Entitlements. Your application bundle's signature contains code signing entitlements that are not supported on iOS. Specifically, value 'dns-proxy' for key 'com.apple.developer.networking.networkextension' in 'Payload/Exponent.app/Exponent' is not supported."

Had tried using new certificates, not helped.

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#2

Does your Apple App ID have “Network Extensions” enabled? That could be causing the issue. (In the Apple Developer Center under "Certificates, Identifiers & Profiles, click on “Identifiers” and expand the App ID for your app to check.)

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#3

Yeap, enabled.

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