If you have exist `task.interval` tagged services you can't run `app/console doctrine:schema:update` to create the tasks tables. SQL to create it manually: ``` sql CREATE TABLE `tasks` ( `id` int(11) NOT NULL AUTO_INCREMENT, `task` longtext COLLATE utf8_unicode_ci NOT NULL COMMENT '(DC2Type:object)', `uuid` varchar(100) COLLATE utf8_unicode_ci NOT NULL, `executionDate` datetime NOT NULL, `completed` tinyint(1) NOT NULL, `task_key` varchar(255) COLLATE utf8_unicode_ci DEFAULT '', PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci; ```