# Upgrade failed!

**URL:** <https://meta.discourse.org/t/upgrade-failed/242000>\
**Category:** Self-hosting\
**Tags:** two-container\
**Created:** [October 16, 2022, 2:54am UTC](https://meta.discourse.org/t/upgrade-failed/242000 "2022-10-16T02:54:43Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![JammyDodger](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jammydodger/32/254611_2.png) [@JammyDodger](https://meta.discourse.org/u/JammyDodger)\
**Post date:** [October 16, 2022, 3:43am UTC](https://meta.discourse.org/t/upgrade-failed/242000/3 "2022-10-16T03:43:44Z")

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Just an FYI @darkpixlz, but `./launcher rebuild app` is not the correct command for a two-container setup (that’s for the single-container setup).

> [@justin\_gordon](#):
>
> Note, I’m running @pfaffman [Managing a Two-Container Installation - Documentation - Literate Computing Support](https://support.literatecomputing.com/t/managing-a-two-container-installation/310)).

* * *

This seems connected to the rename of the master branch to main some time ago. My two-container knowledge is a little shaky, but I think you need to rebuild your `web_only` to pull those changes through?

`./launcher rebuild web_only`

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