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Alpha publication bug - "APK not signed" error


I currently have an application on the Oculus store, in Alpha version.
This application has already been updated several times. (last week)
But Today, when i try to upload the next version, i got the "APK not signed" message at the step 2 of build upload.
The Unity build is currently signed with a correct Android KeyStore, and the apk compillation have no error,

Does anybody know what is going on ?
Thank you.

SO, i am still blocked on the same issue.

For your information, i ckecked the apk signature with the android apk tool : 
jarsigner -verify -verbose -certs my_application.apk -keystore my_keystore.keystore
The result is clean : the apk is correctly signed

If someone have have any idee ?

Grand Champion
You should ask on the mobile developer section of the forum:

And you can get developer support on this page:
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I was hitting this same issue for a while in Unity 2020.1.4f1, and tried everything. Between updating to 2020.3.1f1, and switching it back to be Android 6.0 "Marshmallow" (API level 23), that solved it for me. Now when I run the "apksigner" it also says "Verified using v1 scheme (JAR signing): true" in addition to v2 being true. Before it would only say v2 is true. Either way, now it works. Hopefully that works for you!

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