anchor.diff:  .src/client/app/shared/index.ts
   ----
   include::{sourcedir}/src/client/app/shared/index.ts[]
  ----
  +----
   
   To fix the "No provider" error from above, update `app.component.ts` to import the `SearchService`
   and add the service to the list of providers.
  
positive.code:  * This barrel file provides the export for the shared SearchService.
   */
  export * from './search.service';
  ---
  
  Then add a reference to this file in `src/client/app/shared/index.ts` so its included in the
  shared export.
  
negative.code: EXCEPTION: No provider for Http! (SearchComponent -> SearchService -> Http)
  ----
  
  To solve this, modify `src/main.ts` to import the `Http` service and make it
  available to the app.
  
  [source,javascript]
  