Android: When I try to install my signed app, it says “App not installed”

Question

When I try to install a signed apk file, the application installer says \"App not installed\".
It happens to every app that I have made. Even if I create a brand new k

Answer 1

Check if in guests account(if you are emulating in android 5.0+) the app is installed or not, if yes then remove it and re-install from IDE.