Target class controller does not exist - Laravel 8

Question

Here is my controller:

Answer 1

In laravel 8 you just add your controller namespace in routes\web.php

use App\Http\Controllers\InvoiceController; // InvoiceController is controller name Route::get('invoice',[InvoiceController::class, 'index']);

Or

go `app\Providers\RouteServiceProvider.php` path and remove comments

protected $namespace = 'App\\Http\\Controllers';