【Laravel】ルーティングでコントローラーを通す

【やりたいこと】
Laravelで「web.php」に「/」もしくは「/index」にアクセスされた場合、PlayersControllerのindex メソッドを呼び出すようにしたいです。

【エラー内容】

Target class [App\Http\Controllers\PlayersController] does not exist.

【コード/環境】

・LaravelプロジェクトはMAMP/htdocs配下で作成
・Laravel　8.83.16
・PHP 7.4.21

-web.php-

php
1
2<?php
3
4use Illuminate\Support\Facades\Route;
5
6/*
7|--------------------------------------------------------------------------
8| Web Routes
9|--------------------------------------------------------------------------
10|
11| Here is where you can register web routes for your application. These
12| routes are loaded by the RouteServiceProvider within a group which
13| contains the "web" middleware group. Now create something great!
14|
15*/
16
17//Route::get('/', function () {
18//    return view('welcome');
19//});
20
21Route::get('/','PlayersController@index');
22Route::get('/index','PlayersController@index');

-RouteServiceProvider.php-

php
1<?php
2
3namespace App\Providers;
4
5use Illuminate\Cache\RateLimiting\Limit;
6use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;
7use Illuminate\Http\Request;
8use Illuminate\Support\Facades\RateLimiter;
9use Illuminate\Support\Facades\Route;
10
11class RouteServiceProvider extends ServiceProvider
12{
13    /**
14     * The path to the "home" route for your application.
15     *
16     * This is used by Laravel authentication to redirect users after login.
17     *
18     * @var string
19     */
20    public const HOME = '/home';
21
22    /**
23     * The controller namespace for the application.
24     *
25     * When present, controller route declarations will automatically be prefixed with this namespace.
26     *
27     * @var string|null
28     */
29   protected $namespace = 'App\\Http\\Controllers';
30
31    /**
32     * Define your route model bindings, pattern filters, etc.
33     *
34     * @return void
35     */
36    public function boot()
37    {
38        $this->configureRateLimiting();
39
40        $this->routes(function () {
41            Route::prefix('api')
42                ->middleware('api')
43                ->namespace($this->namespace)
44                ->group(base_path('routes/api.php'));
45
46            Route::middleware('web')
47                ->namespace($this->namespace)
48                ->group(base_path('routes/web.php'));
49        });
50    }
51
52    /**
53     * Configure the rate limiters for the application.
54     *
55     * @return void
56     */
57    protected function configureRateLimiting()
58    {
59        RateLimiter::for('api', function (Request $request) {
60            return Limit::perMinute(60)->by(optional($request->user())->id ?: $request->ip());
61        });
62    }
63}

-Controller.php-

php
1<?php
2
3namespace App\Http\Controllers;
4
5use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
6use Illuminate\Foundation\Bus\DispatchesJobs;
7use Illuminate\Foundation\Validation\ValidatesRequests;
8use Illuminate\Routing\Controller as BaseController;
9
10class Controller extends BaseController
11{
12    use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
13}
14
15class PlayersController extends Controller{
16
17     function index(){
18        echo 'test';
19    }
20}

【やったこと】
原因はルーティングの記載方法、Laravelの不具合、スペルミスを疑い、以下の3つのことを行いました。

・web.phpでのルーティングの記述方法をいろいろ試す
(場合に応じてRouteServicePrivider.phpのprotected $namespace = 'App\Http\Controllers';をコメントアウトにする)

php
1use App\Http\Controllers\PlayersController;

php
1Route::get('/', [PlayersController::class, 'index']);

php
1Route::get('/', [ App\Http\Controllers\PlayersController::class, 'index'] );

php
1Route::get('/', 'App\Http\Controllers\PlayersController@index' );

・Laravelのキャッシュクリア、クラス再結成、パッケージ再インストール

zsh
1php artisan cache:clear
2php artisan config:clear
3php artisan route:clear
4php artisan view:clear
5php artisan event:clear
6php artisan clear-compiled
7
8composer dump-autoload
9
10composer install