# MySQL error upgrading to 4.2

**URL:** https://forum.mautic.org/t/mysql-error-upgrading-to-4-2/22867
**Category:** Mautic 4 Install/Upgrade Support
**Created:** [March 1, 2022, 5:29pm UTC](https://forum.mautic.org/t/mysql-error-upgrading-to-4-2/22867 "2022-03-01T17:29:15Z")
**Posts on this page:** 1
**Showing post:** 20

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### Author: ![escopecz](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/escopecz/32/370_2.png) [@escopecz](https://forum.mautic.org/u/escopecz)
#### Post date: [March 4, 2022, 9:17am UTC](https://forum.mautic.org/t/mysql-error-upgrading-to-4-2/22867/20 "2022-03-04T09:17:43Z")

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Check [Troubleshooting | Mautic](https://docs.mautic.org/en/troubleshooting) and if it’s not related to this thread, please start a new one so we don’t mix several issues together.

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