大家有没有遇到这个问题，是我少了哪个步骤吗？

完全按照教程写的，就是获取不到token，不知道哪里出了问题？

public function store(AuthorizationRequest $request)
    {
        $username = $request->username;

        filter_var($username, FILTER_VALIDATE_EMAIL) ?
            $credentials['email'] = $username :
            $credentials['phone'] = $username;

        $credentials['password'] = $request->password;

        if (!$token = \Auth::guard('api')->attempt($credentials)) {
            throw new AuthenticationException('用户名或密码错误');
        }

        return response()->json([
            'access_token' => $token,
            'token_type'   => 'Bearer',
            'expires_in'   => \Auth::guard('api')->factory()->getTTL() * 60,
        ])->setStatusCode(201);
    }

Postman报错如下图：

在tinker中虽然能获得token,但是会有错误警告