Archive submission failed: ITMS-4238 "Redundant binary upload"

If you have already uploaded a binary and have rejected it and wish to upload to the same version number:

Go to your plist file and change "CFBundleVersion" so if you're uploading version 1.2 change it to 1.2.1 but keep the "CFBundleShortVersionString" as 1.2 so you should have

CFBundleShortVersionString - 1.2 CFBundleVersion - 1.2.1

Archive and submit, then in iTunes Connect you will see all the builds you have submitted for the version 1.2

You're trying to upload a binary with the same build version as the current uploaded build, version 1.0. New versions of apps need a new version number to distinguish them, such as 1.0.1 or 1.1.

Change the build number, and build again before archiving. This worked for me.