各位大神们,我按照ubuntu18.04如何安装cadence virtuoso - 互联网科技 - 亿速云 (yisu.com) 这个帖子一步一步安装IC617,但是最后运行时报错 $OA_HOME is not set and the Cadence installation does not seem to have a valid default OA installation under /home/tyw/cadence/installs/IC617/share/oa,是IC617install时的问题吗?需要重新安装吗?