Before I start writing about the error, I\'m running on macOS Sierra and using Xcode 7.3.1.
So I\'m creating an Archive from my App, I validate the App and it passes
I faced the same problem . what worked for me was ->
go to target-> signing & capabilities -> signing certificate -> I had to revoke one certificate. Always revoke the Certificate by the name of admin's iMac . It is created by default while making your certification and profiles.
**Picture is attached for the reference.
PS:- always make sure the bundle id is same on App store connect and Xcode before archiving.