How to fix “App not installed” Error – Android

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• I didn't find the solution even after i did as u said.. I don't remember if i have installed the older.. but i checked through*999* but didn't find app.. so i assumed that Google play protect settings have to be turned off and i did but still no app installed error popped up..

  • Google Play Protect needs to be turned off and also make sure a previous version of the app is not installed. Go to Settings -> Apps and remove the previous version of the app and then try again.

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