سلام
چند چیز رو‌متوجه نمیشم
در ابتدا میگه کلاس mailmessage  دوم آیا باید use  بشه
سوم ما که اصلا فایل meilmessage نداریم

و اینmailmessage  به چه چیزی اشاره دارد.ممنون میشم اگر عملکرد کد رو توضیح بدید
(تریز)
و در آخر  علت این خطا

web.php

<?php

use App\Models\User;

use App\Models\Video;

use Illuminate\Support\Facades\Route;

use App\Http\Controllers\IndexController;

use App\Http\Controllers\VideoController;

use App\Http\Controllers\CategoryVideoController;

use App\Mail\VerifyEmail;

use Illuminate\Support\Facades\Mail;

/*

|--------------------------------------------------------------------------

| Web Routes

|--------------------------------------------------------------------------

|

| Here is where you can register web routes for your application. These

| routes are loaded by the RouteServiceProvider within a group which

| contains the "web" middleware group. Now create something great!

|

*/

Route::get('/', [IndexController::class, 'index'])->name('index');

Route::get('/videos/create', [VideoController::class, 'create'])->name('videos.create');

Route::post('/videos', [VideoController::class, 'store'])->name('videos.store');

Route::get('/videos/{video}', [VideoController::class, 'show'])->name('videos.show');

Route::get('/videos/{video}/edit', [VideoController::class, 'edit'])->name('videos.edit');

Route::post('/videos/{video}', [VideoController::class, 'update'])->name('videos.update');

Route::get('/categories/{category:slug}/videos', [CategoryVideoController::class, 'index'])->name('categories.videos.index');

Route::get('/dashboard', function () {

    return view('dashboard');

})->middleware(['auth'])->name('dashboard');

require __DIR__ . '/auth.php';

Route::get('/email' ,function() {

    $user = User::first();

    return new VerifyEmail($user);

});

VerifyEmail.php

<?php

namespace App\Mail;

use App\Mail\MailMessage;

use App\Models\User;

use Illuminate\Bus\Queueable;

use Illuminate\Contracts\Queue\ShouldQueue;

use Illuminate\Mail\Mailable;

use Illuminate\Queue\SerializesModels;

class VerifyEmail extends Mailable

{

    use Queueable, SerializesModels;

    private $user;

    /**

     * Create a new message instance.

     */

    public function __construct(User $user)

    {

        $this->user = $user;

    }

    /**

     * Build the message.

     */

    public function build()

    {

      return $this->html((string)(new MailMessage)

        ->greeting("this is test")

        ->line("line one")

        ->action('test','http://google.com')

        ->render()

    );

    }

}