# Classifier code is running without a result

**URL:** https://forum.qiime2.org/t/classifier-code-is-running-without-a-result/33168
**Category:** Technical Support
**Tags:** feature-classifier
**Created:** [May 21, 2025, 9:28am UTC](https://forum.qiime2.org/t/classifier-code-is-running-without-a-result/33168 "2025-05-21T09:28:02Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Claudia\_2000](https://forum.qiime2.org/letter_avatar_proxy/v4/letter/c/58f4c7/32.png) [@Claudia\_2000](https://forum.qiime2.org/u/Claudia_2000)
#### Post date: [May 21, 2025, 9:28am UTC](https://forum.qiime2.org/t/classifier-code-is-running-without-a-result/33168/1 "2025-05-21T09:28:02Z")

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Hey there, I have a problem to get output from this code:

!qiime feature-classifier fit-classifier-naive-bayes   
--i-reference-reads bact\_seqs\_v1v2\_clean.qza   
--i-reference-taxonomy bact\_tax.qza   
--o-classifier bact\_classifier\_v1v2.qza

sequence and taxonomie are cleaned and sequences can be found in taxonomie.fastq data...but this code produce no output data "bact\_classifier\_....qza"...i get no error message....everything looks fine, but its not working.  
I use wsl ubuntu environment and qiime2-amplicon-2024.10

Thanks for any ideas!

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### Author: ![timanix](https://forum.qiime2.org/user_avatar/forum.qiime2.org/timanix/32/17879_2.png) [@timanix](https://forum.qiime2.org/u/timanix)
#### Post date: [May 21, 2025, 10:00am UTC](https://forum.qiime2.org/t/classifier-code-is-running-without-a-result/33168/2 "2025-05-21T10:00:39Z")

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Hello and welcome to the forum!

I had similar issues several times - there was no error, and no output files and the reason was insufficient RAM.

You would try one of the options:

- Decrease "--p-classify--chunk-size" (default 20000)
- Search for the machine with higher RAM available (computer room...)

Best,  
Timur

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### Author: ![timanix](https://forum.qiime2.org/user_avatar/forum.qiime2.org/timanix/32/17879_2.png) [@timanix](https://forum.qiime2.org/u/timanix)
#### Post date: [May 21, 2025, 10:10am UTC](https://forum.qiime2.org/t/classifier-code-is-running-without-a-result/33168/4 "2025-05-21T10:10:42Z")

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UPD:  
Please check my comment [here](https://forum.qiime2.org/t/silva-v4-classifier/32410/9), you can use the classifier I already trained.

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### Author: ![system](https://forum-qiime2-org.s3.dualstack.us-west-2.amazonaws.com/original/3X/2/1/21af5fe23cb6f4579467c66a9ed94e55274ca7bd.svg) [@system](https://forum.qiime2.org/u/system)
#### Post date: [June 21, 2025, 4:11pm UTC](https://forum.qiime2.org/t/classifier-code-is-running-without-a-result/33168/5 "2025-06-21T16:11:16Z")

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