为什么图形不起作用

Question

我想在我的游戏中创建一个球，但是我得到了错误 ＆＃34;无法解析符号＆＃39;图形＆＃34;＆＃34;因此，setColor和FillOval也不起作用。

SELECT user1,
       user2,
       COUNT(*) as messageCount
FROM
(
  SELECT from_user_id as user1, 
         to_user_id as user2
  FROM T
  WHERE from_user_id<= to_user_id
  UNION ALL
  SELECT to_user_id as user1,
         from_user_id as user2
  FROM T
  WHERE from_user_id> to_user_id
) as T1
GROUP BY user1,user2

}