Xcode 9 "no iTunes Connect account" error when uploading

I encountered the same issue with xCode 9 GM build and others reported it as well in xCode 10 and xCode 11. Deleting the derived data actually solved it for me. Hopefully it will help others as well.

Close xCode
rm -fr ~/Library/Developer/Xcode/DerivedData/
Reopen xCode and try to upload again

I just had this happen to me and this was my solution.

Full Quit out of xCode 9
Reopen xCode
Update to a new version number
Archive again

Result: It worked

It's a pretty basic fix, but hopefully it will for you too.

The only solution I have found for now, is to generate IPA for AppStore and then upload it with Application Loader.

This seems to be issue with Xcode 9. Solution is to use Application Loader tool.

Step 1 : Create an IPA file

Clean your project from Product -> Clean (cmd + shift + k )
Select Product -> Archive
Once archive is successfully completed it will open in Organizer window
Press Export button present on right side

Step3-4

Now select the distribution method as per your need and click on Next button

Step5

This will show the App Store distribution options. Now click on Next button

Step6

Re-sign your project (preferred is Automatically manage signing) and click on Next button

Step7

There will be Review window containing IPA content details. Click on Export.

Step8

Now choose the location where folder is to be saved and Click on Export.

Step9

This will create an folder containing IPA, packaging.log, DistributionSummary.plist and ExportOptions.plist file

Step10

Step 2 : Upload IPA using Application Loader

Right click on Xcode tool present on Slide-bar. Goto Open Developer Tool -> Application Loader

Step2-1

This opens Application Loader. Press on Choose button and select IPA file.

Step2-2

This will analyse IPA file and will show IPA details. You can press on Activity button to see list of activity performed while uploading app. Click on Next.

Step2-3