This error occurs when an AppStoreConnect build is submitted for review but later rejected. Then the developer submits a newer build.
1.0.0(0) was submitted, 1.0.0(0) was rejected, 1.0.0(1) was submitted.
The answer can be found hidden in a post here by joelnewcomer
- In the left column, click the current build ("Developer Rejected")
- In the "Build" section, hover over the build and a red dot will appear on far right. Click it and delete the build.
- Select the correct build and resubmit at top of page.
Newer Build Available
Are you sure you want to submit this build for review? A newer build of your app is available. To submit the newer build, delete this earlier build and resubmit.