I tried to upload the app build using Xcode but I got this error \"no accounts with itunes connect access\" I then tried to upload the IPA using application loa
For me just log out on Web iTunesConect / AppsoreConnect portal.
Quit Xcode (if Possible restart) and then upload the build.
If you close all the other app and upload build in sylo makes a job easy.
Also using the "Application Loader" is a Good Solution!
I was facing same issue. In my case I tried to login another Apple Developer account via Safari. I solved this by doing:
Logout the account from Xcode and login again. It works successfully for me. No need to generate build again.
I was getting this error many times during 3 hours. Sometimes along with other errors with it.
What helped: re-loginning toitunesconnect
and restarting Mac after that. Build has uploaded from 1st attempt.
It seems like a temporary issue with apple. Trying few times to send worked and the upload was successful.
I got this error when I log in a different account in another app(iBook log in as my personal account). I solved this by re-login in xCode, re-archive the app, upload again.