Depends where the Source files are from.
Did you get from Google Playstore or somewhere else?
If you uninstall existing App then go to Original site where you got the 1st version and get the newest, it should load and Authorize your new install.
If you are using a hacked copy then you cannot update it.
/kens
I am NOT a "Bot"!
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Mine updates also, as many at ten versions in waiting.If you are using a hacked copy then you cannot update it.