Validating mapping...different...[46b88328cf75b2da533493c5] [no req]   Error: Class 'Elastica\Type\Mapping' not found
Backtrace:
from /vagrant/mediawiki/extensions/CirrusSearch/includes/Maintenance/Validators/MappingValidator.php(86)
#0 /vagrant/mediawiki/extensions/CirrusSearch/maintenance/UpdateOneSearchIndexConfig.php(390): CirrusSearch\Maintenance\Validators\MappingValidator->validate()
#1 /vagrant/mediawiki/extensions/CirrusSearch/maintenance/UpdateOneSearchIndexConfig.php(263): CirrusSearch\Maintenance\UpdateOneSearchIndexConfig->validateMapping()
#2 /vagrant/mediawiki/extensions/CirrusSearch/maintenance/UpdateSearchIndexConfig.php(77): CirrusSearch\Maintenance\UpdateOneSearchIndexConfig->execute()
#3 /vagrant/mediawiki/maintenance/includes/MaintenanceRunner.php(309): CirrusSearch\Maintenance\UpdateSearchIndexConfig->execute()
#4 /vagrant/mediawiki/maintenance/doMaintenance.php(85): MediaWiki\Maintenance\MaintenanceRunner->run()
#5 /vagrant/mediawiki/extensions/CirrusSearch/maintenance/UpdateSearchIndexConfig.php(107): require_once(string)
#6 /var/www/w/MWScript.php(98): require_once(string)
#7 {main}