When i try to update my game i can't do it. I have from like 1 month to change every time I export the Game ID because else it says "app not downloaded" so I just install it like it is another game and everything is resetted.
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Can you share a screenshot of the error that appears, please? What steps do you follow when you export?
I don't have any error message the export goes well, i export a cordova project and i use phonegap, if i have the same game on the smartphone i get app not installed, but if i do the same export and i change the app id I can download the game without issue but it is not an update of the old version it is another game.
Have you change the version of the game.