title: Error in Angular 4 Prod build with unexpected tokens
body: <p>I get an error when angular prod build, and I have Modified tsconfig.json to  "target": "es5", but still gets the same error as below. This came after the local installation of fusionchart packages. Please help</p>
  
  <p><a href="https://i.stack.imgur.com/8TiWA.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8TiWA.png" alt="enter image description here"></a></p>