我正在使用Laravel 7，我试图验证我的电子邮件，我已经遵循了文档中提到的所有步骤，但我仍然得到这个错误，请我解决这个错误，谢谢

的数据
我在这里添加了用户模型代码

<?php

namespace App;

use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;

class User extends Authenticatable implements MustVerifyEmail
{
    use Notifiable;

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'first_name', 'last_name', 'email', 'password', 'permissions'
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];

    /**
     * The attributes that should be cast to native types.
     *
     * @var array
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
    ];
}

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这里是web.php

Auth::routes(['verify'=> true]);

Route::prefix('student')->middleware(['auth', 'verified'])->group(function () {
    Route::get('dashboard', 'StudentController@dashboard');
});

型