I ran 'kraken2-build --db krakendb --download-taxonomy' and created a database with bacteria data (kraken2-build --db krakendb --download-library bacteria), when I tried to build the database, it throw me 'No preliminary seqid/taxid mapping files found, aborting.' error. I check the prelim_map.txt in the taxonomy folder, it is empty. How can I solve this problem?
I ran 'kraken2-build --db krakendb --download-taxonomy' and created a database with bacteria data (kraken2-build --db krakendb --download-library bacteria), when I tried to build the database, it throw me 'No preliminary seqid/taxid mapping files found, aborting.' error. I check the prelim_map.txt in the taxonomy folder, it is empty. How can I solve this problem?