title: Laravel Form validation does not return errors
body: <p>I am trying to validate a form in Laravel. It redirects me back to form if I don't enter the required value, but my <code>$errors</code> remain the same every time</p>
  
  <pre><code>object(Illuminate\Support\ViewErrorBag)#198 (1) {
    ["bags":protected]=&gt;
    array(0) {
    }
  }
  </code></pre>
  
  <p>My <strong>controller</strong></p>
  
  <pre><code>&lt;?php
  
  namespace App\Http\Controllers\admin;
  
  use Illuminate\Http\Request;
  
  use App\Http\Requests;
  use App\Http\Controllers\Controller;
  use Auth;
  use App\Category;
  use App\Http\Requests\CategoryRequest;
  
  class CategoriesController extends Controller {
  
  public function store(CategoryRequest   $request) {
          Category::create($request-&gt;all());
          return redirect('cpl_biovideo/dashboard');
  
      }
  
  }
  </code></pre>
  
  <p>My <strong>Request</strong></p>
  
  <pre><code>&lt;?php
  
  namespace App\Http\Requests;
  
  use App\Http\Requests\Request;
  
  class CategoryRequest extends Request
  {
      /**
       * Determine if the user is authorized to make this request.
       *
       * @return bool
       */
      public function authorize()
      {
          return TRUE;
      }
  
      /**
       * Get the validation rules that apply to the request.
       *
       * @return array
       */
      public function rules()
      {
          return [
              'name' =&gt; 'required|min:4|max:20'
          ];
      }
  }
  </code></pre>
  
  <p>My <strong>Model</strong></p>
  
  <pre><code>&lt;?php
  
  namespace App;
  
  use Illuminate\Database\Eloquent\Model;
  
  class Category extends Model
  {
      protected $fillable =   ['name'];
  }
  </code></pre>
  
  <p>My <strong>View</strong></p>
  
  <pre><code>&lt;div class="card"&gt;
          &lt;div class="card-header"&gt;
              &lt;h2&gt;Add Category&lt;/h2&gt;
          &lt;/div&gt;
          &lt;?php
              echo "&lt;pre&gt;";
              var_dump($errors);
              echo "&lt;/pre&gt;";
          ?&gt;
          &lt;form action="{{url('cpl_biovideo/save-category')}}" method="post"&gt;
              &lt;input type="hidden" name="_token" value="{{csrf_token()}}" /&gt;
              &lt;div class="card-body card-padding"&gt;
  
                  &lt;div class="form-group"&gt;
                      &lt;div class="fg-line"&gt;
                          &lt;input type="text" class="form-control input-lg" placeholder="Category Name" name="name"&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
  
                  &lt;div class="form-group"&gt;
                      &lt;div class="fg-line"&gt;
  
                          &lt;div class="select"&gt;
                              &lt;select class="form-control" name="parent_id"&gt;
                                  &lt;option value=""&gt;Parent Category&lt;/option&gt;
                                  &lt;?php
                                  foreach ($categories as $category) {
                                      ?&gt;
                                      &lt;option value="&lt;?php echo $category-&gt;id ?&gt;"&gt;
                                          &lt;?php echo $category-&gt;name; ?&gt;
                                      &lt;/option&gt;
                                      &lt;?php
                                  }
                                  ?&gt;
  
                              &lt;/select&gt;
                          &lt;/div&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
  
                  &lt;button type="submit" class="btn btn-primary btn-sm m-t-10"&gt;Submit&lt;/button&gt;
              &lt;/div&gt;    
          &lt;/form&gt;
  
      &lt;/div&gt;
  </code></pre>