I\'m trying to upload my app to iTunes Connect with Xcode. I chose product > archive, choose my account, it compiles and when I try to upload it hand for a long time on:
I solved this issue with Transporter, native Apple application. You can download it from AppStore. https://apps.apple.com/ua/app/transporter/id1450874784?mt=12
This application has a much more information about uploading process and possible errors.