title: lenovo A7000 app not installed error and conflict key error
body: <p><a href="https://i.stack.imgur.com/CjbWI.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CjbWI.png" alt="enter image description here"></a>I used lenovo A7000 as debugging phone and installed the apk but when trying to uninstall the app it is getting uninstalled but showing error as not installed in my app section of phone refer image for this .
  and when i try to install signed apk , it is giving conflict key message.</p>