title: Could not determine a single project for the 'serve' target
body: <p>I'm trying create a jhipster project with Angular 6. When I run <code>ng serve</code> command, I got the following error.</p>
  
  <pre><code>Could not determine a single project for the 'serve' target.
  Error: Could not determine a single project for the 'serve' target.
      at ServeCommand.getProjectNamesByTarget (C:\Users\pc\complexdemo\node_modules\@angular\cli\models\architect-command.js:184:19)
      at MergeMapSubscriber._loadWorkspaceAndArchitect.pipe.operators_1.concatMap [as project] (C:\Users\pc\complexdemo\node_modules\@angular\cli\models\architect-command.js:58:43)
      at MergeMapSubscriber._tryNext (C:\Users\pc\complexdemo\node_modules\rxjs\internal\operators\mergeMap.js:122:27)
      at MergeMapSubscriber._next (C:\Users\pc\complexdemo\node_modules\rxjs\internal\operators\mergeMap.js:112:18)
      at MergeMapSubscriber.Subscriber.next (C:\Users\pc\complexdemo\node_modules\rxjs\internal\Subscriber.js:103:18)
      at TapSubscriber._next (C:\Users\pc\complexdemo\node_modules\rxjs\internal\operators\tap.js:109:26)
      at TapSubscriber.Subscriber.next (C:\Users\pc\complexdemo\node_modules\rxjs\internal\Subscriber.js:103:18)
      at MergeMapSubscriber.notifyNext (C:\Users\pc\complexdemo\node_modules\rxjs\internal\operators\mergeMap.js:141:26)
      at InnerSubscriber._next (C:\Users\pc\complexdemo\node_modules\rxjs\internal\InnerSubscriber.js:30:21)
      at InnerSubscriber.Subscriber.next (C:\Users\pc\complexdemo\node_modules\rxjs\internal\Subscriber.js:103:18)
  </code></pre>