# classify-sklearn - Plugin error from feature-classifier: pop from empty list

**URL:** https://forum.qiime2.org/t/classify-sklearn-plugin-error-from-feature-classifier-pop-from-empty-list/14074
**Category:** Silva
**Tags:** taxonomy, feature-classifier, silva
**Created:** [March 16, 2020, 9:44am UTC](https://forum.qiime2.org/t/classify-sklearn-plugin-error-from-feature-classifier-pop-from-empty-list/14074 "2020-03-16T09:44:25Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![SY\_Yang](https://forum.qiime2.org/user_avatar/forum.qiime2.org/sy_yang/32/4848_2.png) [@SY\_Yang](https://forum.qiime2.org/u/SY_Yang)
#### Post date: [March 20, 2020, 8:53am UTC](https://forum.qiime2.org/t/classify-sklearn-plugin-error-from-feature-classifier-pop-from-empty-list/14074/3 "2020-03-20T08:53:11Z")

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Hi @Nicholas_Bokulich,

Thank you for the suggestion!  
I take a look of the 7-level taxonomy of Silva, there are lots of taxonomic is missing the D\_6, so I use the taxonomy all level.  
However, even used the all level, I still need to use `--p-confidence=disable` , otherwise I still got the same error. This doesn't happen in previous version of QIIME2.

Anyway I got my result successfully!  
Thank you for the help!!  
Sung

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