Fatal error: Uncaught Error: Class 'yii\mail\BaseMailer' not found in /var/www/html/vendor/codeception/base/src/Codeception/Lib/Connector/Yii2/TestMailer.php:6 Stack trace: #0 {main} thrown in /var/www/html/vendor/codeception/base/src/Codeception/Lib/Connector/Yii2/TestMailer.php on line 6