# Rebuild issue: \[Cannot set dual-stack in combination with a custom endpoint.\]

**URL:** <https://meta.discourse.org/t/rebuild-issue-cannot-set-dual-stack-in-combination-with-a-custom-endpoint/334902>\
**Category:** Bug\
**Tags:** s3, fixed\
**Created:** [November 7, 2024, 8:13am UTC](https://meta.discourse.org/t/rebuild-issue-cannot-set-dual-stack-in-combination-with-a-custom-endpoint/334902 "2024-11-07T08:13:14Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![Don](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/don/32/228726_2.png) [@Don](https://meta.discourse.org/u/Don)\
**Post date:** [November 7, 2024, 8:13am UTC](https://meta.discourse.org/t/rebuild-issue-cannot-set-dual-stack-in-combination-with-a-custom-endpoint/334902/1 "2024-11-07T08:13:14Z")

</div>

Hello 👋

Cannot rebuild with the following issue.

```plaintext
I, [2024-11-07T08:00:56.758061 #1] INFO -- : > cd /var/www/discourse && sudo -E -u discourse bundle exec rake s3:upload_assets
rake aborted!
ArgumentError: Cannot set dual-stack in combination with a custom endpoint. (ArgumentError)

          raise ArgumentError, "Cannot set dual-stack in combination with a custom endpoint."
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

```

```plaintext
FAILED

--------------------

Pups::ExecError: cd /var/www/discourse && sudo -E -u discourse bundle exec rake s3:upload_assets failed with return #<Process::Status: pid 3349 exit 1>

Location of failure: /usr/local/lib/ruby/gems/3.3.0/gems/pups-1.2.1/lib/pups/exec_command.rb:132:in `spawn'

exec failed with the params {"cd"=>"$home", "cmd"=>["sudo -E -u discourse bundle exec rake s3:upload_assets", "sudo -E -u discourse bundle exec rake s3:expire_missing_assets"]}

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.

567dc9e1f9a4e662de6024b8504915d8b6ef1ee2d9b4303af75323ba478679e4

```

Probably related commit: [FIX: Use dualstack S3 endpoint for direct uploads (#29611) · discourse/discourse@0568d36 · GitHub](https://github.com/discourse/discourse/commit/0568d36133081e52f25f05585c1a568c3b828d79)

I use [S3 object storage](https://meta.discourse.org/t/configure-an-s3-compatible-object-storage-provider-for-uploads/148916) upload to DO Spaces. The issue is probably with this.

> [@Configure an S3 compatible object storage provider for uploads](https://meta.discourse.org/t/configure-an-s3-compatible-object-storage-provider-for-uploads/148916/1):
>
> ## Configuration
> 
> In order to store Discourse static assets in your Object Storage add this configuration on your app.yml under the `hooks` section:
> 
> ```plaintext
> after_assets_precompile:
> - exec:
> cd: $home
> cmd:
> - sudo -E -u discourse bundle exec rake s3:upload_assets
> - sudo -E -u discourse bundle exec rake s3:expire_missing_assets
> 
> ```

Thanks 🙂

---

_[View the full topic](https://meta.discourse.org/t/rebuild-issue-cannot-set-dual-stack-in-combination-with-a-custom-endpoint/334902)._