title: NullInjectorError: No provider for e! in Angular 8
body: <p>main-es2015.6f31d328c9edc909ac03.js:1 ERROR Error: Uncaught (in promise): NullInjectorError: StaticInjectorError(i)[Se -&gt; e]:
  StaticInjectorError(Platform: core)[Se -&gt; e]:
  NullInjectorError: No provider for e!</p>
  <p>I get the above error only when I do --prod build.
  FYI, the module is lazy loaded.</p>
  <p>Any suggestions/help will be really appreciated.</p>