title: Getting error "The package appears to be corrupt" while installing apk file
body: <p>I am having a weird problem.I got this error after I updated Android Studio from 2.3.3 to 3.0..The problem is when I try to install apk file it says</p>
  
  <p>App not installed.
  The package appears to be corrupt.</p>
  
  <p>I have tried generating apk in both debug and release version and tried to install but whenever I install apk it show the same message..</p>
  
  <p>When I run the android project from android studio it is working.
  May be the gradle problem but couldn't fix it.
  Please help</p>