WARNING: MetaPhlAn did not detect any microbial taxa in the sample

Microbial community profiling MetaPhlAn
1

DESCRIPTION
MetaPhlAn version 4.1.1 (11 Mar 2024):
METAgenomic PHyLogenetic ANalysis for metagenomic taxonomic profiling.

info:
WARNING: MetaPhlAn did not detect any microbial taxa in the sample.

I installed the corresponding up-to-date database according to the user manual, but I wonder why no metaphlan results are empty, no way to compare to any known microbe, which is not normal, right? I’m using fasta files.

2

Hello,
Thank you for the great tools. I am using the same version I get the same error after running a couple of tests on a smaller batch of samples.
However, I am able to see in the same samples some PCR-validated bacterial taxa using MEGAN6, using both reads and contigs.
Any idea how this lack of detection could be verified?

3

hello,
I have same question with you ,do you have anyway to solve that？thank you.