如何解决致命错误：找不到类'App \ Http \ Controllers \ Controller'

Question

我正在尝试使用Laravel 5.4将表单提交到数据库，但是每次我按下“提交”按钮时，都会出现以下错误消息：

Fatal error: Class 'App\Http\Controllers\Controller' not found.

下面是我的代码controller.php:

<?php

namespace App\Http\Controllers;
use Illuminate\Http\Request;

class PagesController extends Controller
{
    public function index()
    {
        return view('./');
    }

    public function about()
    {
        $title='About us';
        return view('pages.about')->with('title',$title);
    }

    public function services()
    {
        $data=array(
            'title'=>'Services',
            'services'=>['Mechanic help','book a mechanic','others']
        );
        return view('pages.services')->with ($data);
    }

    public function create()
    {

    }
}

Answer 1

That kind of error would mean that you are either missing your Controller.php file in the same folder, or the autoloader isn't loading it, or it is not defining the class Controller. This is the file in the Laravel repo:

https://github.com/laravel-shift/laravel-5.4/blob/master/app/Http/Controllers/Controller.php