App not Installed Error on Android

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I have a program working in the Android Emulator. Every now and again I have been creating a signed .apk and exporting it to my HTC Desire to test. It has all been fine.

On my latest exported .apk I get the error message 'App not installed' when I try to install the .apk. It runs fine on the emulators.

As I have mainly been testing on the emulators and only every now and again exporting to a real phone I am not sure when this happened. What is the likely cause of it not installing on a physical phone but running fine in the emulators?

I have tried rebooting the phone & removing the existing .apk, does not fix the fault.
Nov 3, 2022 in Others by gaurav
• 23,260 points
661 views

1 answer to this question.

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In order to allow installation of apps from other sources, open the Settings app and locate "Install Unknown Apps" under Privacy/Security settings. Enable the permission for the app which you use to install your APK. In most cases, this is the app being updated, a file manager or the browser.

answered Nov 4, 2022 by gaurav
• 23,260 points

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