We identified one or more issues with a recent delivery for your app,... . Please correct the following issues, then upload again.
ITMS-90129: The bundle uses a bundle name or display name that is already taken.
Best regards,
The App Store Team
I tried to resubmit the file 6 times. I renamed my bundle. I still keep on getting the email/error again and again. I'm also doing this from Xcode.
Try changing the display name of the app, it's pretty common that it's already been taken. You can do so in the project settings...