The same issue was posted here but the answer given didn\'t work for me. I\'ve uploaded to the store before and now I can\'t update my app to include some bug fixes. Wheneve
You just have to set Build variants if you are on android studio.
Flow => Go to Build Variants -> From Build variant -> Select release mode
Here you just have to set the mode as release not debug.
NOTE : This is for security of your apk on google play store.
FOR NON-ANDROID-STUDIO users :
Here we just have to set the android:debuggable="false" in application tag of your menifest file and you are done.
And you are out of your issue.
Thanks and feel free to comment ...