title: module file saver not found in angular
body: <p>I have installed the saver file using</p>
  <pre><code>npm install @ types/file-saver --save-dev
  </code></pre>
  <p>Why can't I find the module?</p>
  <p>and show this in my project:
  Module not found: Error: Can't resolve 'file-saver' in 'D:\myAngular\src\app\admin\product'</p>