stata中选择项nogragh不可用是什么原因？

回归后stata显示：option nogragh not allowed后面我试图更新stata和下载nogragh都没有成功 恳请论坛大神帮助


. update all
(contacting http://www.stata.com)
bad serial number
r(197);

. ssc install nogragh
ssc install: "nogragh" not found at SSC, type -findit nogragh-
(To find all packages at SSC that start with n, type -ssc describe n-)
r(601);