# Rails and hanami-view don't get along

**URL:** <https://discourse.hanakai.org/t/rails-and-hanami-view-dont-get-along/1122>\
**Category:** questions\
**Created:** [February 16, 2025, 2:22pm UTC](https://discourse.hanakai.org/t/rails-and-hanami-view-dont-get-along/1122 "2025-02-16T14:22:41Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![stephan](https://avatars.discourse-cdn.com/v4/letter/s/8baadc/32.png) [@stephan](https://discourse.hanakai.org/u/stephan)\
**Post date:** [February 17, 2025, 4:50am UTC](https://discourse.hanakai.org/t/rails-and-hanami-view-dont-get-along/1122/9 "2025-02-17T04:50:32Z")

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I can also confirm that this works! Thank you both!

In my larger example I did find the connection to `rack` I suspected in the topic: The downgrading of `rack` and `rackup` due to the dependency of `hanami-controller` causes some system tests to fail with:

```auto
NoMethodError:
            undefined method `register' for Rackup::Handler:Module

```

This had been found previously ([System spec failures after upgrading to 1.0.1 · Issue #19 · rack/rackup · GitHub](https://github.com/rack/rackup/issues/19)), has a fix in puma ([https://github.com/puma/puma/pull/3532](https://github.com/puma/puma/pull/3532)) which was part of the 6.5.0 upgrade. After `bundle update` upgraded my puma from 6.4 to 6.6… things work!

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_[View the full topic](https://discourse.hanakai.org/t/rails-and-hanami-view-dont-get-along/1122)._