# Troubleshooting Code: (KeyError) key :changeset not found

**URL:** <https://forum.devtalk.com/t/troubleshooting-code-keyerror-key-changeset-not-found/46034>\
**Category:** Backend Questions/Help\
**Tags:** debugging, elixir, troubleshooting\
**Created:** [21 March 2022 13:57 UTC](https://forum.devtalk.com/t/troubleshooting-code-keyerror-key-changeset-not-found/46034 "2022-03-21T13:57:45Z")\
**Posts on this page:** 1\
**Showing post:** 5

<div class="post-metadata">

**Author:** ![dimitarvp](https://forum.devtalk.com/user_avatar/forum.devtalk.com/dimitarvp/32/5599_2.png) [@dimitarvp](https://forum.devtalk.com/u/dimitarvp)\
**Post date:** [22 March 2022 11:10 UTC](https://forum.devtalk.com/t/troubleshooting-code-keyerror-key-changeset-not-found/46034/5 "2022-03-22T11:10:07Z")

</div>

Look for which module in your app defines a `view` function e.g.

```elixir
defmodule YourModule do
  dev view do
    # ...
  end
end

```

In your case it _should_ be `BlogWeb` but who knows, maybe it’s another one.

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