Answers for "laravel error:target class [app\http\controller\dashboardcontroller] does not exist."

laravel 8 Target class [FormController] does not exist.

use App\Http\Controllers\UserController;

Route::get('/users', [UserController::class, 'index']);
// or
Route::get('/users', 'App\Http\Controllers\UserController@index');

Target class [App\Http\Controllers\EmployeeController] does not exist.

[PagesController::class, 'index']