Ошибка отсутствия класса контроллера

В чём ошибка?

//Error

Illuminate\Contracts\Container\BindingResolutionException
Target class [app/Http/Controllers/TestController] does not exist.

//Rout

Route::get('/test/show/', 'TestController@show');

//TestControllers.php

<?php
    namespace App\Http\Controllers;
    use App\Http\Controllers\Controller;
    
    class TestController extends Controller
    {
        public function show()
        {
            return 'TestController';
        }
    }