How to install the latest metaphlan reference DB?

Hi there:

The metaphlan software is very cool, which is very helpful to me. Here,I have a question about the ‘mpa_vJan21_CHOCOPhlAnSGB_202103’ installation. After I downloaded the ‘mpa_vjan21_chocophlansGB_202103.tar’ to the specified location, useing the github command " metaphlan --install --index mpa_vJan21_CHOCOPhlAnSGB_202103 -- Bowtie2db <The database folder> " to build the Metaphlan database.But it does not work:

The installation address of the Metaphlan database is as follows:

So I delete ‘mpa_vjan21_chocophlansGB_202103.fna’ ,and run the metaphlan --install command again:

But metaphlan does not generate the .bt2 file(like mpa_v31_CHOCOPhlAn_201901.1.bt2),so how to build the mpa_vJan21_CHOCOPhlAnSGB_202103 (the latest metaphlan reference DB) ?

Any help would be appreciated!

Why did it create mpa_v31_CHOCOPhlAn_201901.1.bt2 for you?
For me it is still installing mpa_v30_CHOCOPhlAn_201901
because that is set in:

The version that you mentioned I found here:

Hi @shengxinf ,
Thanks for getting in touch. The code to use the mpa_vJan21 version of the MetaPhlAn database (i.e MetaPhlAn 4) is not available yet, we hope to release the code in the following weeks. In the meanwhile, the last stable version of MetaPhlAn is mpa_v3.0. For a correct installation of this version, you should just run metaphlan --install