Using different Table for Authentication in Laravel 5.1

我为用户创建了一个不同的表，我创建了一种模型，并在auth.php文件中更改了表名和模型名，但仍然收到了这个错误

Connection.php第651行出现QueryException：

SQLSTATE[42S02]：找不到基表或视图：1146表'grpchat_db.users'不存在

知道吗？

SuperAdmin模型的代码。我想用这个替换用户模型

namespace GroupChat;
use Illuminate'Auth'Authenticatable;
use Illuminate'Database'Eloquent'Model;
use Illuminate'Auth'Passwords'CanResetPassword;
use Illuminate'Foundation'Auth'Access'Authorizable;
use Illuminate'Contracts'Auth'Authenticatable as AuthenticatableContract;
use Illuminate'Contracts'Auth'Access'Authorizable as AuthorizableContract;
use Illuminate'Contracts'Auth'CanResetPassword as CanResetPasswordContract;
class SuperAdmin extends Model implements AuthenticatableContract,
                                    AuthorizableContract,
                                    CanResetPasswordContract
{
    use Authenticatable, Authorizable, CanResetPassword;
    protected $fillable = ['name', 'email', 'password'];
} ?>

auth.php

<?php
return [
/*
|--------------------------------------------------------------------------
| Default Authentication Driver
|--------------------------------------------------------------------------
|
| This option controls the authentication driver that will be utilized.
| This driver manages the retrieval and authentication of the users
| attempting to get access to protected areas of your application.
|
| Supported: "database", "eloquent"
|
*/
'driver' => 'eloquent',
/*
|--------------------------------------------------------------------------
| Authentication Model
|--------------------------------------------------------------------------
|
| When using the "Eloquent" authentication driver, we need to know which
| Eloquent model should be used to retrieve your users. Of course, it
| is often just the "User" model but you may use whatever you like.
|
*/
'model' => GroupChat'SuperAdmin::class,
/*
|--------------------------------------------------------------------------
| Authentication Table
|--------------------------------------------------------------------------
|
| When using the "Database" authentication driver, we need to know which
| table should be used to retrieve your users. We have chosen a basic
| default value but you may easily change it to any table you like.
|
*/
'table' => 'super_admins',
/*
|--------------------------------------------------------------------------
| Password Reset Settings
|--------------------------------------------------------------------------
|
| Here you may set the options for resetting passwords including the view
| that is your password reset e-mail. You can also set the name of the
| table that maintains all of the reset tokens for your application.
|
| The expire time is the number of minutes that the reset token should be
| considered valid. This security feature keeps tokens short-lived so
| they have less time to be guessed. You may change this as needed.
|
*/
'password' => [
    'email'  => 'emails.password',
    'table'  => 'password_resets',
    'expire' => 60,
],
];