TasksApplication/app/Http/Controllers/Controller.php

<?php

namespace App\Http\Controllers;

use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Contracts\Validation\Validator;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;

abstract class Controller extends BaseController
{
  use DispatchesJobs, ValidatesRequests;

  /**
   * {@inheritdoc}
   */
  protected function formatValidationErrors(Validator $validator)
  {
    return $validator->errors()->all();
  }
}