Debug CController class in Yii1 app with Xdebug - php

Question

I have a Yii1 application and I am trying to debug the application with Xdebug.
The part that I want to debug is a controller action:
<?php
namespace Scrape\controllers;
use Google\AdsApi\AdWords\AdWordsServices;
use Google\AdsApi\AdWords\AdWordsSessionBuilder;
use Google\AdsApi\AdWords\v201809\cm\CampaignService;
use Google\AdsApi\AdWords\v201809\cm\OrderBy;
use Google\AdsApi\AdWords\v201809\cm\Paging;
use Google\AdsApi\AdWords\v201809\cm\Selector;
use Google\AdsApi\Common\OAuth2TokenBuilder;
use GuzzleHttp\Client;
use Scrape\domain\creator\IgnoreCreator;
use Scrape\domain\creator\MonitorCreator;
use Scrape\domain\creator\ProjectCreator;
use Scrape\domain\creator\TaskCreator;
use Scrape\domain\deleter\IgnoreDeleter;
use Scrape\domain\deleter\ProjectDeleter;
use Scrape\domain\deleter\ResultDeleter;
use Scrape\domain\deleter\TaskDeleter;
use Scrape\domain\Downloader;
use Scrape\domain\IgnoreFilter;
use Scrape\domain\repository\IgnoreRepository;
use Scrape\domain\repository\ProjectRepository;
use Scrape\domain\repository\ResultRepository;
use Scrape\domain\repository\TaskRepository;
use Scrape\domain\Google;
use Scrape\domain\TaskResetter;
use Scrape\domain\TaskSuggestionRetriever;
use Scrape\models\Ignore;
use Scrape\models\Monitor;
use Scrape\models\Project;
use Scrape\models\Query;
use Scrape\models\Result;
use Scrape\models\Task;
use Scrape\models\TaskIntention;
use Scrape\models\TaskKeywordForm;
use Scrape\models\TaskPopularity;
use Scrape\models\TaskStatus;
use User\models\UserType;
use function GuzzleHttp\Psr7\str;
class DefaultController extends \CController
{
public function actionDownloadTask($id)
{
(new Downloader)->downloadByTask(TaskRepository::findOne($id));
}
public function actionDownloadProject($id)
{
(new Downloader)->downloadByProject(ProjectRepository::findOne($id));
}
}
But I get this error:
Exception has occurred.
Fatal error: Uncaught Error: Class "CController" not found in C:\xampp\htdocs\webScraper\protected\modules\scrape\controllers\DefaultController.php:44
Stack trace:
#0 {main}
thrown
On the class definition.
So my question is: how to tackle this inconvenience?
This is my index.php file:
<?php
use application\components\WebApplication;
define('DIR_ROOT',getcwd().DIRECTORY_SEPARATOR);
$autoload = DIR_ROOT . 'protected/vendor/autoload.php';
$config = DIR_ROOT . 'protected/config/main.php';
$yii = DIR_ROOT . 'protected/components/Yii.php';
// remove the following lines when in production mode
defined('YII_DEBUG') or define('YII_DEBUG',true);
// specify how many levels of call stack should be shown in each log message
defined('YII_TRACE_LEVEL') or define('YII_TRACE_LEVEL',3);
require_once($autoload);
require_once($yii);
include DIR_ROOT . 'protected/components/WebApplication.php';
(new WebApplication($config))->run();
As you can see I have $autoload defined in the index.php file. Or do you mean something else?