Taskエンティティをジェネレータで作成します。項目はstring型のnameのみ作成します。 $ bin/console doctrine:generate:entity The Entity shortcut name: AppBundle:Task [Enter] Configuration format (yml, xml, php, or annotation) [annotation]: [Enter] New field name (press <return> to stop adding fields): name [Enter] Field type [string]: [Enter] Field length [255]: [Enter] Is nullable [false]: [Enter] Unique [false]: true [Enter] New fie