Laravel-API-Fehler 404

Ich bin einfache API mit Laravel 5.4 und ich habe ein problem. Ich erstellte routing und einige Daten für die tests, aber wenn ich testen, ob das routing richtig funktioniert mit Postboten, indem Sie localhost:8888/{projectname}/api/v1/meeting es zeigt mir error 404 page not found. Was mache ich falsch?

routes/api.php

<?php    
Route::group(['prefix' => 'v1'], function() {
    Route::resource('meeting', 'MeetingController', [
        'except' => ['edit', 'create']
    ]);

    Route::resource('meeting/registration', 'RegistrationController', [
        'only' => ['store', 'destroy']
    ]);

    Route::post('user', [
        'uses' => 'AuthController@store'
    ]);

    Route::post('user/signin', [
        'uses' => 'AuthController@signin'
    ]);
});

MeetingController

<?php    
namespace App\Http\Controllers;    
use Illuminate\Http\Request;    
use App\Http\Requests;    
class MeetingController extends Controller
{
    public function __construct()
    {
        //$this->middleware('name');
    }

    public function index()
    {
        return "It works!";
    }

    public function store(Request $request)
    {
        return "It works!";
    }

    public function show($id)
    {
        return "It works!";
    }

    public function update(Request $request, $id)
    {
        return "It works!";
    }

    public function destroy($id)
    {
        return "It works!";
    }

}

RegistrationController

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

class RegistrationController extends Controller
{
    public function store(Request $request)
    {
        return "It works!";
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        return "It works!";
    }
}

AuthController

    <?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

use App\Http\Requests;

class AuthController extends Controller
{
    public function store(Request $request)
    {
        return "It works!";
    }

    public function signin(Request $request)
    {
        return "It works!";
    }
}

Ausgabe des Befehls php artisan route:list:

    +--------+-----------+--------------------------------------------+----------------------+-----------------------------------------------------+------------+
| Domain | Method    | URI                                        | Name                 | Action                                              | Middleware |
+--------+-----------+--------------------------------------------+----------------------+-----------------------------------------------------+------------+
|        | GET|HEAD  | /                                          |                      | Closure                                             | web        |
|        | POST      | api/v1/meeting                             | meeting.store        | App\Http\Controllers\MeetingController@store        | api        |
|        | GET|HEAD  | api/v1/meeting                             | meeting.index        | App\Http\Controllers\MeetingController@index        | api        |
|        | POST      | api/v1/meeting/registration                | registration.store   | App\Http\Controllers\RegistrationController@store   | api        |
|        | DELETE    | api/v1/meeting/registration/{registration} | registration.destroy | App\Http\Controllers\RegistrationController@destroy | api        |
|        | DELETE    | api/v1/meeting/{meeting}                   | meeting.destroy      | App\Http\Controllers\MeetingController@destroy      | api        |
|        | PUT|PATCH | api/v1/meeting/{meeting}                   | meeting.update       | App\Http\Controllers\MeetingController@update       | api        |
|        | GET|HEAD  | api/v1/meeting/{meeting}                   | meeting.show         | App\Http\Controllers\MeetingController@show         | api        |
|        | POST      | api/v1/user                                |                      | App\Http\Controllers\AuthController@store           | api        |
|        | POST      | api/v1/user/signin                         |                      | App\Http\Controllers\AuthController@signin          | api        |
+--------+-----------+--------------------------------------------+----------------------+-----------------------------------------------------+------------+