I'm on Xcode 6, and I'm trying to submit an iOS (target: iOS 8) app to the App Store, and I'm getting an ITMS-4238 error. It says there is already the same build already, but I've never successfully submitted this app so far. So there is no submitted build in iTunes Connect, so I don't know why I'm getting this.
What I'm doing is following:
- Create an Archive
- Submit binary from Organizer
I also tried to submit with ApplicationLoader but the result was same.
This is the error I'm getting:
Archive submission failed with errors:
Archive submission failed due to the issues listed below:
- ERROR ITMS-4238: "Redundant Binary Upload. There already exists a binary upload with build version '1.0' for train '1.0'" at SoftwareAssets/PreReleaseSoftwareAsset
Here's a screenshot of the error:

Any ideas how to fix this?
Progress:
I solved my problem by myself.
I increased my build number from 1.0 to 1.0.2.1 .
I don't know why iTunes Connect thinks there is already binary version 1.0.