How can I solve the problem? I used some ways but got the same error below!

Thanks

Plugin error from composition:

All values in `grouping` are unique. This method cannot operate on a grouping vector with only unique values (e.g., there are no 'within' variance because each group of samples contains only a single sample).

Debug info has been saved to /tmp/qiime2-q2cli-err-8tfw2uxa.log

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