The scikit-learn version used to generate this artifact does not match the current version of scikit-learn installed

[divyaprince321 (divya)]

Hello All
I tried to run a command
qiime feature-classifier classify-sklearn --i-classifier gg-13-8-99-515-806-nb-classifier.qza --i-reads merged_seq.qza --o-classification taxonomy.qza.
but it gave an error
The scikit-learn version (0.23.1) used to generate this artifact does not match the current version of scikit-learn installed (0.21.2). Please retrain your classifier for your current deployment to prevent data-corruption errors.

Debug info has been saved to /tmp/qiime2-q2cli-err-vyqm69av.log
the debug info is as
cat /tmp/qiime2-q2cli-err-vyqm69av.log
Traceback (most recent call last):
File "/home/qiime2/miniconda/envs/qiime2-2019.10/lib/python3.6/site-packages/q2cli/commands.py", line 328, in call
results = action(**arguments)
File "</home/qiime2/miniconda/envs/qiime2-2019.10/lib/python3.6/site-packages/decorator.py:decorator-gen-351>", line 2, in classify_sklearn
File "/home/qiime2/miniconda/envs/qiime2-2019.10/lib/python3.6/site-packages/qiime2/sdk/action.py", line 229, in bound_callable
spec.view_type, recorder)
File "/home/qiime2/miniconda/envs/qiime2-2019.10/lib/python3.6/site-packages/qiime2/sdk/result.py", line 289, in _view
result = transformation(self._archiver.data_dir)
File "/home/qiime2/miniconda/envs/qiime2-2019.10/lib/python3.6/site-packages/qiime2/core/transform.py", line 70, in transformation
new_view = transformer(view)
File "/home/qiime2/miniconda/envs/qiime2-2019.10/lib/python3.6/site-packages/q2_feature_classifier/_taxonomic_classifier.py", line 64, in _1
% (sklearn_version, sklearn.version))
ValueError: The scikit-learn version (0.23.1) used to generate this artifact does not match the current version of scikit-learn installed (0.21.2). Please retrain your classifier for your current deployment to prevent data-corruption errors.
How to sought this issue out.

[llenzi (Luca)]

Hi @divyaprince321,

I moved your question to a separate thread because is not related to the initial question.
This topic also appear few time in the forum, so I hope the following answer it will help you too:

Plugin error feature-classifier (0.22.2.post1)

Please read the following before posting! Hello, i have an error when i run the classifier step, i use the native qiime2-2020.2 version in a conda environment, my laptop GB RAM is bigger than 8. What i run is: $ qiime feature-classifier classify-sklearn --i-classifier classifier.qza --i-reads rep-seqs.qza --o-classification taxonomy.qza --verbose And then i get: Traceback (most recent call last): File "/home/ubuntu/miniconda3/envs/qiime2-2020.2/lib/python3.6/site-packages/q2cli/commands.py…

Even it is mentioning different versions for sk-learn, it is pointing to the same problem!
Basically, the version of qiime2 used to prepare your classify is different from the qiime2 version you are using. The easy fix would be to use the latest version of qiime2.

Luca