I had an app studio app (windows 8.1) that recently was removed from the store because I failed to update the Age Ratings. Recently I requested that the app be reactivated in the store so I could submit an updated version with the Age ratings questionnaire filled out.
It was reactivated. I proceed to update my app in app studio to Windows 10. I submit the new package in Windows Dev Center, but I keep getting this error.
A previous submission for this app was released with a Windows Phone 8.1 or Windows 8.1 appxbundle. Your Windows 10 submission must also contain an appxbundle
appxbundle doesn't exist for windows 10 apps. Furthermore I don't have any previous Windows 8.1 appxbundle other than the last original that was published to the store. But in order to update I need to increment the version. Generating a new Windows 8.1 package from App Studio no longer provides appxbundle. But rather appupload files.
It impossible to update this app through dev center. What can I do?