# gneiss balance-taxonomy & taxonomy issues
**URL:** https://forum.qiime2.org/t/gneiss-balance-taxonomy-taxonomy-issues/11332
**Category:** Technical Support
**Created:** [August 27, 2019, 4:40pm UTC](https://forum.qiime2.org/t/gneiss-balance-taxonomy-taxonomy-issues/11332 "2019-08-27T16:40:03Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@nvtravan](https://forum.qiime2.org/u/nvtravan)
#### Post date: [August 27, 2019, 4:40pm UTC](https://forum.qiime2.org/t/gneiss-balance-taxonomy-taxonomy-issues/11332/1 "2019-08-27T16:40:03Z")
I am having the same issue. I had taken my freq. table and collapsed the taxa to L6 prior to gneiss analysis. I had used the taxa collapse script as described in the ANCOM section of the Moving Pictures tutorial. All of the gneiss scripts worked well- until the 'balance-taxonomy' portion. I got the same error as Jewelna. After looking around the forum, it seems like others have experienced this, but I was unable to find a solution.
The problem looks to be what ebolyen suggested- the taxonomy artifact does not match the collapsed taxonomy in the gneiss analysis. What seems to be needed to solve the issue is a taxonomy artifact that is at the same taxonomic level (in my case, I need it at L6). I am not sure how to do this. Do I make a new taxonomy file from gg and set it at L6? Can I collapse the taxonomy file I already have to L6? I am going to try these approaches- but if anyone has fix, please let me know!
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### Author:  [@thermokarst](https://forum.qiime2.org/u/thermokarst)
#### Post date: [August 30, 2019, 6:27pm UTC](https://forum.qiime2.org/t/gneiss-balance-taxonomy-taxonomy-issues/11332/2 "2019-08-30T18:27:17Z")
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### Author:  [@thermokarst](https://forum.qiime2.org/u/thermokarst)
#### Post date: [August 30, 2019, 6:55pm UTC](https://forum.qiime2.org/t/gneiss-balance-taxonomy-taxonomy-issues/11332/3 "2019-08-30T18:55:58Z")
> [@nvtravan](#):
>
> I am not sure how to do this. Do I make a new taxonomy file from gg and set it at L6? Can I collapse the taxonomy file I already have to L6? I am going to try these approaches- but if anyone has fix, please let me know!
I think you are right, the issue here is that the `FeatureTable[Frequency]` IDs are the collapsed taxonomy strings, while the `FeatureData[Taxonomy]` IDs are still the hashed sequence values. We don't have a method in QIIME 2 currently to collapse the `FeatureData[Taxonomy]`, so you will have to do that manually (I would write some kind of script for that, personally).
Taking a step back, why can't you use the uncollapsed table here?
Thanks!
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### Author:  [@thermokarst](https://forum.qiime2.org/u/thermokarst)
#### Post date: [August 30, 2019, 6:56pm UTC](https://forum.qiime2.org/t/gneiss-balance-taxonomy-taxonomy-issues/11332/4 "2019-08-30T18:56:00Z")