Warning: include_once(XMLWriter.php): failed to open stream: No such file or directory in /var/www/gls-api/vendor/zendframework/zendframework1/library/Zend/Loader.php on line 134

Warning: include_once(): Failed opening 'XMLWriter.php' for inclusion (include_path='/var/www/gls-api/application//../library:/var/www/gls-api/application//forms:/var/www/gls-api/library:/var/www/gls-api/application/models:/var/www/gls-api/application/forms:/var/www/gls-api/vendor/zendframework/zendframework1/library:.:/usr/share/php') in /var/www/gls-api/vendor/zendframework/zendframework1/library/Zend/Loader.php on line 134

Fatal error: Class 'XMLWriter' not found in /var/www/gls-api/library/GLSRest/Response/Format/Xml.php on line 12