App Not installed issue after generating Apk sucessfully

Hi friends

I am able to generate Apk Successfully using command

ionic build android --release

or

ionic build android --prod --release

but when i run Apk in Real device(Mobile) then it will show “Not installed error”

then i need to download one more app(app editor from play store) then i need to set SDK = 23 then App will get Installed

how to solve this Issue

please any solution