title: app-debug.apk does not exist on disk
body: <p>I've looked through all tips in the other threads here, tried all proposed solutions (last thing I did was completely uninstall and reinstall Android Studio), and I still get it...</p>
  
  <p>If I select "Build APK", then whenever I change the code the changes aren't put in effect in the new versions of the app... I think I'm going to give this up for the weekend...</p>
  
  <p>First I had all the database errors I pointed to in the other thread (unsolved), then Android Studio started "ignoring" changes in my code (like commented lines being ran as they weren't commented), now invalidating the cache and everything else (including the reinstall) left me here...</p>
  
  <p>Any thoughts?</p>