Could not build the fungi database

[vmevada102]

I am trying to use the prebuilt Fungal database for the fungal diversity study.

I ran the following command. kraken2-build --download-library fungi --db fungi

After completion of the data processing. I am still not able to find the taxo.k2d file in the specific folder.

The program terminated with following error. Kraken2: database ("./fungi") does not contain necessary file taxo.k2d

After consecutive efforts and Download taxonomy files/folder, I am again getting another error

Command run : kraken2-build --build --db fungi --threads 46

Error. : ..../build_kraken2_db.sh: line 105: KRAKEN2_LOAD_FACTOR: unbound variable