title: Exclude files from build in Angular 2
body: <p>How to exclude files from the Angular build using Angular-CLI. I've just added the path to exclude in the <code>tsconfig.json</code> and <code>tsconfig.app.json</code> files,  but when I run <code>ng serve</code>, Angular is still trying to compile the files.</p>
  <p>Any ideas?</p>