Laravel作业/通知失败

我正在尝试在我的网站上设置一个联系人表单,当有人单击“发送”,然后运行一个作业,在该作业中,会向所有管理员用户发送通知。但是,我在失败的作业表中不断出现此错误:

Illuminate\Database\Eloquent\ModelNotFoundException: No query results for model [App\Contact]. in /var/www/html/leonsegal/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php:412

我把我的代码弄得一团糟,看不出我做错了什么。有人能帮忙吗?

这是我的控制器:

<?php

namespace App\Http\Controllers;

use App\Contact;
use App\Jobs\SendContactJob;

class ContactController extends Controller
{
    /**
     * @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
     */
    public function create()
    {
        return view('contact');
    }

    public function store()
    {
        request()->validate([
            'name' => 'required|max:255',
            'email' => 'required|email|unique:contacts|max:255',
            'message' => 'required|max:2000',
        ]);

        $contact = Contact::create(
            request()->only([
                'name',
                'email',
                'message',
            ])
        );

        SendContactJob::dispatch($contact);

        return back()->with('success', 'Thank you, I will be in touch as soon as I can');
    }
}

我的工作:

<?php

namespace App\Jobs;

use App\Contact;
use App\Notifications\SendContactNotification;
use App\User;
use Illuminate\Bus\Queueable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Foundation\Bus\Dispatchable;
use Illuminate\Support\Facades\Notification;

class SendContactJob implements ShouldQueue
{
    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;

    protected $contact;

    /**
     * Create a new job instance.
     *
     * @param Contact $contact
     */
    public function __construct(Contact $contact)
    {
        $this->contact = $contact;
    }

    /**
     * Execute the job.
     *
     * @return void
     */
    public function handle()
    {
        $users = User::all()
            ->where('admin', 1)
            ->where('approved', 1);

        Notification::send($users, new SendContactNotification($this->contact));
    }
}

我的通知:

<?php

namespace App\Notifications;

use App\Contact;
use Illuminate\Bus\Queueable;
use Illuminate\Notifications\Notification;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;

class SendContactNotification extends Notification implements ShouldQueue
{
    use Queueable;

    protected $contact;

    /**
     * Create a new notification instance.
     *
     * @param $contact
     */
    public function __construct(Contact $contact)
    {
        $this->contact = $contact;
    }

    /**
     * Get the notification's delivery channels.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function via($notifiable)
    {
        return ['mail'];
    }

    /**
     * Get the mail representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return \Illuminate\Notifications\Messages\MailMessage
     */
    public function toMail($notifiable)
    {
        return (new MailMessage)
                    ->line($this->contact->name)
                    ->line($this->contact->email)
                    ->line($this->contact->message);
    }

    /**
     * Get the array representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function toArray($notifiable)
    {
        return [
            //
        ];
    }
}

奇怪的是,当我在作业的handle方法中运行一个die dump时,它从不激发,但是Artisan队列工作者说它处理正确,但随后的通知是失败的地方。我不知道为什么工作中的句柄方法不会被解雇。

我已经将.env文件设置为数据库队列驱动程序。

我想可能是我没有导入联系人模型,但是你可以看到我已经导入了。

任何帮助都将不胜感激。