Location of failure: /usr/local/lib/ruby/gems/3.4.0/gems/pups-1.4.0/lib/pups/exec_command.rb:138:in 'Pups::ExecCommand#spawn'
exec failed with the params {"cd" => "$home", "tag" => "build", "hook" => "assets_precompile_build", "cmd" => ["sudo -H -E -u discourse bash -c '\n if [[$(git symbolic-ref --short HEAD) == $version]] ; then\n SKIP_DB_AND_REDIS=1 bundle exec rake assets:precompile:build assets:precompile:pretty_text\n else\n SKIP_DB_AND_REDIS=1 bundle exec rake assets:precompile:build\n fi\n'"]}
bootstrap failed with exit code 1
**FAILED TO BOOTSTRAP** please scroll up and look for earlier error messages, there may be more than one.
./discourse-doctor may help diagnose the problem.
582d39a0c9c78bab114c5abfda91bc8ea8322552034c78ee50f92c504d58323c
```
My `app.yml` is
```plaintext
templates:
- templates/postgres.template.yml
- templates/redis.template.yml
- templates/web.template.yml
- templates/web.ratelimited.template.yml
- templates/web.ssl.template.yml
- templates/web.letsencrypt.ssl.template.yml
- templates/web.china.template.yml
expose:
- 80:80
- 443:443
params:
db_default_text_search_config: pg_catalog.english
db_shared_buffers: 768MB
version: release/2026.7
env:
LC_ALL: en_US.UTF-8
LANG: en_US.UTF-8
LANGUAGE: en_US.UTF-8
// ...
UNICORN_WORKERS: 4
DISCOURSE_DOWNLOAD_PRE_BUILT_ASSETS: 0
```
---
### Author:  [@singi2016cn](https://meta.discourse.org/u/singi2016cn)
#### Post date: [September 7, 2026, 7:22am UTC](https://meta.discourse.org/t/topic/411795/2 "2026-09-07T07:22:07Z")
It looks like the update missed something. Below are the results of an AI analysis:
## Problem Description
The issue is a version mismatch between the **Docker base image** and the **`release/2026.7` branch code** :
* * *
### What Happened
During the bootstrap process, the build script embedded in the Docker base image `discourse/base:2.0.20260109-0020` executes the following command:
```plaintext
if [[$(git symbolic-ref --short HEAD) == release/2026.7]] ; then
bundle exec rake assets:precompile:build assets:precompile:pretty_text
# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
# This task does not exist!
fi
```
* * *
### Why It Failed
| Location | Status |
| --- | --- |
| `discourse/base` image | The new image requires the `assets:precompile:pretty_text` task to be run |
| `release/2026.7` branch | **Does not have** this rake task (not defined in `lib/tasks/assets.rake`) |
| `main` / `release/2026.8` | **Has** this task (from commit `cfed6b85b6c`, Rolldown PrettyText migration) |
In short: **The image is new, but the code branch is old**. The image requires executing a task that does not yet exist in the older branch.
* * *
### Fix Options
| Option | Action |
| --- | --- |
| **Recommended: Upgrade to `release/2026.8`** | Modify the `version: tests-passed` or branch name in the container configuration file; this branch includes the task |
| Downgrade the base image | Use an older version of the `discourse/base` image that does not include the `pretty_text` build step |
| Manually add an empty task | Add an empty `assets:precompile:pretty_text` task in `lib/tasks/assets.rake` (temporary workaround) |
---
### Author:  [@merefield](https://meta.discourse.org/u/merefield)
#### Post date: [September 7, 2026, 8:24am UTC](https://meta.discourse.org/t/topic/411795/3 "2026-09-07T08:24:21Z")
That task exists on main/latest and 2026.8.0:
>
Curious!
Can you switch to 2026.8.x?
---
### Author:  [@Moin](https://meta.discourse.org/u/Moin)
#### Post date: [September 7, 2026, 8:29am UTC](https://meta.discourse.org/t/topic/411795/4 "2026-09-07T08:29:50Z")
> [@What to know before upgrading from v3.4.0 to v2026.7.2](https://meta.discourse.org/t/what-to-know-before-upgrading-from-v3-4-0-to-v2026-7-2/411291/5):
>
> Hey @corywright sorry about that - Current ESR doesn’t have the job, patch in flight [here](https://github.com/discourse/discourse_docker/pull/1126). We’ll get it fixed up soon, and I’ll ensure the ESR target is added as a smoke test target to prevent future regressions.