> For the complete documentation index, see [llms.txt](https://platform9.com/kb/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://platform9.com/kb/pmo/how-to/e-the-repository-http-platform9-neutron-s3-website-us-west-1-am.md).

# E: The repository '<http://platform9-neutron.s3-website-us-west-1.amazonaws.com> ubuntu/ Release' does not have a Release file.

## Problem

The following error is observed while trying to update the package list (e.g. via **apt update**) on a Platform9-managed host.

{% tabs %}
{% tab title="None" %}

```none
E: The repository 'http://platform9-neutron.s3-website-us-west-1.amazonaws.com ubuntu/ Release' does not have a Release file. N: Updating from such a repository can't be done securely, and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.
```

{% endtab %}
{% endtabs %}

## Environment

* Platform9 Managed OpenStack - v3.6.0 and Higher
* Ubuntu 16.04

## Cause

The **platform9\_neutron\_s3\_website\_us\_west\_1\_amazonaws\_com.list** repository is not marked as trusted.

## Resolution

1. Modify */etc/apt/sources.list* and mark the repository as trusted.

{% tabs %}
{% tab title="None" %}

```none
deb [trusted=yes] http://platform9-neutron.s3-website-us-west-1.amazonaws.com ubuntu/
```

{% endtab %}
{% endtabs %}

2. Save changes and exit the file.
3. Check for package updates once again.

{% tabs %}
{% tab title="None" %}

```none
# apt update
```

{% endtab %}
{% endtabs %}


---

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