# Feature table summarize Invalid DISPLAY variable

**URL:** <https://forum.qiime2.org/t/feature-table-summarize-invalid-display-variable/1227>\
**Category:** User Support\
**Tags:** matplotlib, summarize, feature-table\
**Created:** [September 13, 2017, 4:51pm UTC](https://forum.qiime2.org/t/feature-table-summarize-invalid-display-variable/1227 "2017-09-13T16:51:40Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![mc92](https://forum.qiime2.org/letter_avatar_proxy/v4/letter/m/cc9497/32.png) [@mc92](https://forum.qiime2.org/u/mc92)\
**Post date:** [September 14, 2017, 4:35pm UTC](https://forum.qiime2.org/t/feature-table-summarize-invalid-display-variable/1227/5 "2017-09-14T16:35:25Z")

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Hi @jairideout,

I tried this command in the conda environment

```bash
echo "backend: Agg" > ~/.config/matplotlib/matplotlibrc 

```

and it worked! So I suppose the problem was not with Qiime but with the matplotlib configuration.

Thank you very much!

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