# Upgraded first node from 7.17.5 to 8.4. Won't start, claiming there is a 6.4.5 index, but I can't find it

**URL:** <https://discuss.elastic.co/t/upgraded-first-node-from-7-17-5-to-8-4-wont-start-claiming-there-is-a-6-4-5-index-but-i-cant-find-it/317811>\
**Category:** Elasticsearch\
**Created:** [October 31, 2022, 10:47am UTC](https://discuss.elastic.co/t/upgraded-first-node-from-7-17-5-to-8-4-wont-start-claiming-there-is-a-6-4-5-index-but-i-cant-find-it/317811 "2022-10-31T10:47:20Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![Brett\_C](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/brett_c/32/112714_2.png) [@Brett\_C](https://discuss.elastic.co/u/Brett_C)\
**Post date:** [November 1, 2022, 11:34pm UTC](https://discuss.elastic.co/t/upgraded-first-node-from-7-17-5-to-8-4-wont-start-claiming-there-is-a-6-4-5-index-but-i-cant-find-it/317811/9 "2022-11-01T23:34:45Z")

</div>

Thanks for the tip, Emily! I'll give that a try with this node as well and see how it goes.

100% agree that the Error message would be more useful if it listed the problematic indices.

---

_[View the full topic](https://discuss.elastic.co/t/upgraded-first-node-from-7-17-5-to-8-4-wont-start-claiming-there-is-a-6-4-5-index-but-i-cant-find-it/317811)._