# Humann error database version

**URL:** <https://forum.biobakery.org/t/humann-error-database-version/3619>\
**Category:** HUMAnN\
**Created:** [May 20, 2022, 1:12pm UTC](https://forum.biobakery.org/t/humann-error-database-version/3619 "2022-05-20T13:12:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![balamurugan\_Sadaiapp](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/balamurugan_sadaiapp/32/675_2.png) [@balamurugan\_Sadaiapp](https://forum.biobakery.org/u/balamurugan_Sadaiapp)\
**Post date:** [May 20, 2022, 1:12pm UTC](https://forum.biobakery.org/t/humann-error-database-version/3619/1 "2022-05-20T13:12:54Z")

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Hi  
I am using humann3 installed via conda. I have tried all the methods mentioned in the tutorials and forums, but still, I am facing a problem.

CRITICAL ERROR: The directory provided for ChocoPhlAn contains files ( utility\_mapping ) that are not of the expected version. Please install the latest version of the database: 201901b  
conda activate biobakery3m

(biobakery3) plankton@PlanktonEcology:/media$ humann\_config  
HUMAnN Configuration ( Section : Name = Value )  
database\_folders : nucleotide = /home/plankton/Humann\_databases  
database\_folders : protein = /home/plankton/Humann\_databases  
database\_folders : utility\_mapping = /home/plankton/INSTALL\_LOCATION/utility\_mapping  
run\_modes : resume = False  
run\_modes : verbose = False  
run\_modes : bypass\_prescreen = False  
run\_modes : bypass\_nucleotide\_index = False  
run\_modes : bypass\_nucleotide\_search = False  
run\_modes : bypass\_translated\_search = False  
run\_modes : threads = 1  
alignment\_settings : evalue\_threshold = 1.0  
alignment\_settings : prescreen\_threshold = 0.01  
alignment\_settings : translated\_subject\_coverage\_threshold = 50.0  
alignment\_settings : translated\_query\_coverage\_threshold = 90.0  
alignment\_settings : nucleotide\_subject\_coverage\_threshold = 50.0  
alignment\_settings : nucleotide\_query\_coverage\_threshold = 90.0  
output\_format : output\_max\_decimals = 10  
output\_format : remove\_stratified\_output = False  
output\_format : remove\_column\_description\_output = False

This the database which I am using /home/plankton/Humann\_databases/uniref/uniref90\_201901b\_full.dmnd.  
/home/plankton/Humann\_database/chocophlan/g\_\_Abditibacterium.s\_\_Abditibacterium\_utsteinense.centroids.v296\_v201901b.ffn.gz

Thank you

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**Author:** ![franzosa](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.biobakery.org/franzosa/32/3511_2.png) [@franzosa](https://forum.biobakery.org/u/franzosa)\
**Post date:** [June 28, 2022, 8:30pm UTC](https://forum.biobakery.org/t/humann-error-database-version/3619/2 "2022-06-28T20:30:48Z")

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Sorry for the slow reply. HUMAnN requires that its pangenome files of a given version (e.g. 201901b) be organized in a folder with only those pangenomes - no other files. It looks like you might have installed your utility mapping folder to the same location. We use this as a safety measure to make sure that users aren’t mapping to database files of different versions.