When trying to upload an App to iTunes connect in Xcode 8.3.3, I get the error:
iTunes Connect access for \"Team-Name\" is required. Add an account in
I suspect that Apple has broken something with the IOS 11, etc upgrades going on. It was all working fine over the last few months, including yesterday, and suddenly today its broken.
As a temporary solution, I had to use export to local disk (from Archive), then select: XCode/Open Developer Tool/Application Loader.