# 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:** 15

<div class="post-metadata">

**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, 10:21pm UTC](https://meta.discourse.org/t/build-fails-due-to-ruby-version-mismatch/396317/15 "2026-02-17T22:21:05Z")

</div>

Tallyho! Thanks @pfaffman

```plaintext
root@discuss:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f6dbb52ff74c local_discourse/data "/sbin/boot" 10 days ago Up 3 hours data
674e5e3fe5d8 local_discourse/app "/sbin/boot" 10 days ago Up 3 hours 0.0.0.0:80->80/tcp, [::]:80->80/tcp, 0.0.0.0:443->443/tcp, [::]:443->443/tcp app

```

Running  
`docker stop app; docker rm app`  
then  
`./launcher bootstrap web_only && ./launcher destroy web_only && ./launcher start web_only`  
**works fine now**

I am very curious about the “hold” on app and why previous rebuilds worked fine. Very odd.

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_[View the full topic](https://meta.discourse.org/t/build-fails-due-to-ruby-version-mismatch/396317)._