error message:(1/1) Invalid value for '--i-classifier': Expected an artifact of at least type TaxonomicClassifier. An artifact of type FeatureData[Sequence] was provided.

[SoilRotifer (Mike Robeson)]

Hi @Frank,

I am a little late to the party but just an FYI:

In our RESCRIPt paper, we have a supplementary example of making a 12S rRNA db:

• PDF
• ipython notebook

Additional details are here.