I used the following command line after performing beta diversity analysis to generate PCOA plot :
qiime emperor plot
i obtained the following error message :
Invalid value for “–i-pcoa”: Expected an artifact of at least type PCoAResults. An artifact of type DistanceMatrix was provided.
What is the command line that i can use to generate pcoa results.qza in order to use this last file as input to generate PCOA plot using emperor tool ?