Property 'includes' does not exist on type 'string[]'
<p>Getting the error </p>

<blockquote>
  <p>Property 'includes' does not exist on type 'string[]'</p>
</blockquote>

<p>in node_modules/ng2-breadcrumb/app/components/breadcrumbService.ts
I am trying to implement breadcrumb functionality in an angular2 app.</p>