Laravel嵌套路由路径

这是我的routes.php

 use App\Site;
 use App\Report;


 Route::get('sites/{site_id}/report/{report_id}', array('as'=>'Reports'), 
   function($site_id, $report_id){ 

   return view('reports')->with('site_id',$site_id)  
   ->with('report_id', $report_id);

  });

这是我的观点(reports.blade.php)

  @foreach($reports as $report)
   <tr>
    <td>{{$report->url}}</td>
    <td>{{$report->recipient}}</td>
    <td>{{$report->email_date}}</td>
    <td><a href="{{route('Reports',['site_id'=>$report->site_id], 
    ['report_id'=>$report->report_id])}}">view</a>  |
   </tr>
  @endforeach   
</tbody>

错误: 缺少[Route:Reports][URI:sites/{site\u id}/report/{report\u id}的必需参数。(视图:home/vagrant/apps/reporting tool/resources/views/newsite.blade.php)

你知道怎么解决这个问题吗?

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