Hi @cherman2,
Yeah for exporting the feature table. Thanks for that!
I have been following this link for Silva 138 Classifier SILVA 138 Classifiers
After installing RESCRIPt, I input this command:
qiime tools import
--type 'FeatureData[SILVATaxonomy]'
--input-path tax_slv_ssu_138.txt
--output-path taxranks-silva-138-ssu-nr99.qza
but received this error message

I'm not sure what went wrong.