title: File 'src/app/app.component.spec.ts' is not part of Typescript project while upgrading to Angular 5
body: <p>File 'src/app/app.component.spec.ts' is not part of Typescript project 'src/tsconfig.app.json' while upgrading to Angular 5</p>
  
  <p>We have followed all the instructions for converting our project from angular 4 but are pulling out our hair over this one - anyone have any ideas?</p>
  
  <p>We are getting this error from tslint...</p>