# Plugin Error: list index out of range for qiime demux summarize

**URL:** <https://forum.qiime2.org/t/plugin-error-list-index-out-of-range-for-qiime-demux-summarize/1030>\
**Category:** User Support\
**Tags:** demux, summarize\
**Created:** [August 17, 2017, 6:34pm UTC](https://forum.qiime2.org/t/plugin-error-list-index-out-of-range-for-qiime-demux-summarize/1030 "2017-08-17T18:34:26Z")\
**Posts on this page:** 1\
**Showing post:** 14

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**Author:** ![ebolyen](https://forum.qiime2.org/user_avatar/forum.qiime2.org/ebolyen/32/11_2.png) [@ebolyen](https://forum.qiime2.org/u/ebolyen)\
**Post date:** [September 29, 2017, 7:31pm UTC](https://forum.qiime2.org/t/plugin-error-list-index-out-of-range-for-qiime-demux-summarize/1030/14 "2017-09-29T19:31:55Z")

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[QIIME 2 2017.9](https://forum.qiime2.org/t/qiime-2-2017-9-release-is-now-live/1160) now validates that both forward and reverse reads are present for every sample when importing!

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_[View the full topic](https://forum.qiime2.org/t/plugin-error-list-index-out-of-range-for-qiime-demux-summarize/1030)._