title: Upgrade to AndroidStudio 3.4 and now can´t run my app
body: <p>I updated my Android Studio to Android Studio 3.4 and I'm trying to run one of my apps but it gives me an error.</p>
  
  <p>com.android.tools.idea.run.ApkProvisionException: No outputs for the main artifact of variant: debug</p>
  
  <p>Session 'app': Install failed.
  Installation failed
  Rerun</p>