# 500 Error trying to upgrade discourse

**URL:** <https://meta.discourse.org/t/500-error-trying-to-upgrade-discourse/304364>\
**Category:** Self-hosting\
**Created:** [April 17, 2024, 8:48pm UTC](https://meta.discourse.org/t/500-error-trying-to-upgrade-discourse/304364 "2024-04-17T20:48:22Z")\
**Posts on this page:** 1\
**Showing post:** 7

<div class="post-metadata">

**Author:** ![Jane\_Jojo](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jane_jojo/32/119485_2.png) [@Jane\_Jojo](https://meta.discourse.org/u/Jane_Jojo)\
**Post date:** [April 17, 2024, 10:40pm UTC](https://meta.discourse.org/t/500-error-trying-to-upgrade-discourse/304364/7 "2024-04-17T22:40:48Z")

</div>

unfortunately, no

```plaintext
 docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: missing signature key.
See 'docker run --help'.

```

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