cakephp4 ログイン認証機能　ログインできない！

現在cakephp4でログイン認証機能を作成しております。
しかしログインに失敗します。
下記がデバッグで見たエラーメッセージです。

APP/Controller/ContactsController.php (line 162)

object(Authentication\Authenticator\Result) id:0 {
protected _status => 'FAILURE_CREDENTIALS_MISSING'
protected _data => null
protected _errors => [
(int) 0 => 'Login credentials not found',
]
}

controllor.php

php
1public function beforeFilter(\Cake\Event\EventInterface $event)
2    {
3        parent::beforeFilter($event);
4        $this->Authentication->allowUnauthenticated(['login']);
5    }
6
7    public function login()
8    {
9        $result = $this->Authentication->getResult();
10        debug($result, true);
11        // 認証成功
12        if ($result->isValid()) {
13            $target = $this->Authentication->getLoginRedirect() ?? '/home0';
14            return $this->redirect($target);
15        }
16        // ログインできなかった場合
17        if ($this->request->is('post') && !$result->isValid()) {
18            $this->Flash->error('Invalid username or password');
19        }
20    }php 
21

Application.php

php
1
2
3/////上記省略・・・・・・・・・・・・・・・・・・・・・・・・・・
4
5
6
7public function getAuthenticationService(ServerRequestInterface $request): AuthenticationServiceInterface
8    {
9        $service = new AuthenticationService();
10        $service->setConfig([
11            'unauthenticatedRedirect' => Router::url('/sample/contacts/login'),
12            'queryParam' => 'redirect',
13        ]);
14        $service->loadAuthenticator('Authentication.Session');
15        $service->loadAuthenticator('Authentication.Form', [
16          'fields' => [
17            'username' => 'name',
18            'mail' => 'mail'
19          ],
20          'loginUrl' => '/sample/contacts/login',
21        ]);
22        $service->loadIdentifier('Authentication.Password', [
23          'fields' => [
24            'name' => 'name',
25            'mail' => 'mail'
26          ]
27        ]);
28
29        return $service;
30    }