Undefined variable: full_remote_file

[fbens]

Undefined variable: full_remote_file

#1. in D:\website\flxx2\basic\vendor\hguenot\yii2-gftp\drivers\FtpDriver.php at line 490
            if ($ret !== FTP_FINISHED) {
                throw new FtpException(
                    Yii::t('gftp', 'Could not put file "{local_file}" on "{remote_file}" on server "{host}"', [
                        'host' => $this->host, 'remote_file' => $full_remote_file, 'local_file' => $local_file
                    ])
                );
            }
        }

        return $full_remote_file;

why so many undefined variable in this extensions

[hguenot]

Hello, thanks for your help.
I think you do not need to write your comment as big !