How to solve "Your APK's version code needs to be higher than 2." in Google Play's Developer Console?
If you're directly using Gradle, or indirectly through Android Studio:
I fixed it by editing the version number inside of the build.gradle
file! There is a small banner at the bottom of the android.manifest file that says "these changes are being overwritten by the build.gradle file."
Please see attached snap of Android Studio which should help.