Fatal error: Uncaught Error: Class 'yii\base\Action' not found in /opt/lampp/htdocs/io.core.websocket/vendor/yiisoft/yii2-httpclient/src/debug/RequestExecuteAction.php:20 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/io.core.websocket/vendor/yiisoft/yii2-httpclient/src/debug/RequestExecuteAction.php on line 20