HI @huangchen,
Welcome to the :qiime2: forum!
By searching the forum I was able to find this post where a similar problem was resolved. Please look through and see if this solution is relevant to you and if so give it a try! if not, look through the other posts regarding this error. If none of those are helpful please send the command and the entire traceback here so we can work through it.
-Hannah
1 Like