title: Class 'App\Http\Controllers\Controller' not found in Laravel 8
body: <p><strong>Controller</strong></p>
  <pre class="lang-php prettyprint-override"><code>namespace App\Http\Controllers;
  
  use App\Models\Article;
  use Illuminate\Http\Request;
  
  
  class ArticlesController extends Controller
  {
      public function show($id)
      {
          $article = Article::find($id);
  
          return view('articles.show', ['article' =&gt; $article]);
      }
  }
  </code></pre>
  <p><strong>Routes</strong></p>
  <pre class="lang-php prettyprint-override"><code>use Illuminate\Support\Facades\Route;
  
  Route::get('/', function () {
      return view('welcome');
  });
  
  Route::get('/about', function () {
      return view('about', [
          'articles' =&gt; App\Models\Article::take(3)-&gt;latest()-&gt;get()
      ]);
  });
  
  Route::get('/articles/{article}',
      'App\Http\Controllers\ArticlesController@show');
  </code></pre>
  <p><strong>show.blade.php</strong></p>
  <pre class="lang-php prettyprint-override"><code>@extends ('layout')
  @section ('content')
      &lt;div id=&quot;wrapper&quot;&gt;
          &lt;div id=&quot;page&quot; class=&quot;container&quot;&gt;
              &lt;div id=&quot;content&quot;&gt;
                  &lt;div class=&quot;title&quot;&gt;
                      &lt;h3&gt;{{ $article-&gt;title }}&lt;/h3&gt;
                      &lt;p&gt;
                          &lt;img src=&quot;/images/banner.jpg&quot; alt=&quot;&quot;
                               class=&quot;image image-full&quot;/&gt;
                      &lt;/p&gt;
                      &lt;p&gt;{{ $article-&gt;body }}&lt;/p&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
  @endsection
  </code></pre>
  <p><strong>Error</strong></p>
  <blockquote>
  <p>Class 'App\Http\Controllers\Controller' not found
  http://localhost:8000/articles/2</p>
  </blockquote>
  <p>I am not sure where I am going wrong. I have looked at the documentation for routes/controllers in Laravel 8, and it looks like what I have should be working.</p>