When I tried to distribute the app binary to AppStore today, uploading failed and found the following errors.
Distribution failed with errors:
The following issues occurred while distributing your application.
App Store Connect Operation Error resource download failed : com.apple.transporter.mediatoolkit/2.2.0
App Store Connect Operation Error unsatisfied requirement: com.apple.transporter.itmstransporter
App Store Connect Operation Error unsatisfied requirement: com.apple.transporter.softwaresupport
App Store Connect Operation Error (&(package=com.apple.jingle.leghorn.fileformat)(version>=2.2.0)(!(version>=3.0.0)))
App Store Connect Operation Error unsatisfied requirement: com.apple.transporter.core
I've tried to resubmit but also failed again. I am using Xcode12.4 on Mac OS Catalina 10.15.6. Distributing binary had been worked very well for few months, but today it is not working with the above issues.
Edit: It looks like Apple has fixed this issue as my archives are uploading without any warnings though I didn't upgrade xCode and MacOS.