Fatal error: Uncaught ExtensionDependencyError: DiscussionTools requires VisualEditor to be installed. DiscussionTools requires Linter to be installed. in /var/www/html/mediawiki/w/includes/registration/ExtensionRegistry.php:463 Stack trace: #0 /var/www/html/mediawiki/w/includes/registration/ExtensionRegistry.php(317): ExtensionRegistry->readFromQueue() #1 /var/www/html/mediawiki/w/includes/Setup.php(288): ExtensionRegistry->loadFromQueue() #2 /var/www/html/mediawiki/w/includes/WebStart.php(85): require_once('...') #3 /var/www/html/mediawiki/w/api.php(37): require('...') #4 {main} thrown in /var/www/html/mediawiki/w/includes/registration/ExtensionRegistry.php on line 463