# Build fails due to ruby version mismatch

**URL:** https://meta.discourse.org/t/build-fails-due-to-ruby-version-mismatch/396317
**Category:** Self-hosting
**Created:** [February 17, 2026, 5:35am UTC](https://meta.discourse.org/t/build-fails-due-to-ruby-version-mismatch/396317 "2026-02-17T05:35:23Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![philh](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/philh/32/532740_2.png) [@philh](https://meta.discourse.org/u/philh)
#### Post date: [February 17, 2026, 5:35pm UTC](https://meta.discourse.org/t/build-fails-due-to-ruby-version-mismatch/396317/5 "2026-02-17T17:35:58Z")

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Thanks Jay. I saw that but odd messages are not that uncommon with successful builds.

> [@pfaffman](#):
>
> Do you have discourse Docker pinned to an old version?

No, followed the OP as mentioned.

> [@Move from standalone container to separate web and data containers](https://meta.discourse.org/t/move-from-standalone-container-to-separate-web-and-data-containers/29413/128):
>
> ./launcher bootstrap data && ./launcher destroy data && ./launcher start data fails with error unless first stopping the data container with ./launcher stop data This occurs on instances created fresh with ./discourse-setup --two-container and converted using the longer method. In both cases ./launcher stop web\_only && ./launcher rebuild data && ./launcher rebuild web\_only and ./launcher bootstrap web\_only && ./launcher destroy web\_only && ./launcher start web\_only work as expected. Am I…

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