tableモデルを作ったらアウト
$ rake db:migrate == CreateTables: migrating ==================================================== -- create_table(:tables) rake aborted! MysqlError: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'tables (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `n: CREATE TABLE tables (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `name` varchar(45) DEFAULT '' NOT NULL, `description` text DEFAULT '' NOT NULL) ENGINE=InnoDB
tablesがMySQLのSQL文予約語としてひっかかってアウト。(他にも色々なところでひっかかりそうなのでモデル名変更)