Fatal error: Uncaught Error: Class 'yii\helpers\ArrayHelper' not found in /opt/lampp/htdocs/squidv2-stage-dea/tests/codeception/config/unit.php:5 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/squidv2-stage-dea/tests/codeception/config/unit.php on line 5