Using a Classifier, Error: Classifier does not support confidence values

Hey @aalex,
One more little step to diagnose this issue.

Could you please use this one-liner to make sure you have an even number of ranks on each line, and let us know the result?:

awk -F\; '{print NF-1}' reference_taxonomy.txt | sort -u

That will tell you the number of semicolon-delimited ranks in each line. If you receive more than one number in the output, then we can work to find the line that is shorter (or longer) than the rest.

I know, I know, your python script should be outputting an even number of ranks, but let's just make sure.

Thanks!