# Uninitialized constant CreateUsers

**URL:** <https://www.ruby-forum.com/t/uninitialized-constant-createusers/84844>\
**Category:** Rails\
**Created:** [February 8, 2007, 1:19am UTC](https://www.ruby-forum.com/t/uninitialized-constant-createusers/84844 "2007-02-08T01:19:57Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![georgeuoa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/7ab992/32.png) [@georgeuoa](https://www.ruby-forum.com/u/georgeuoa)\
**Post date:** [February 8, 2007, 1:19am UTC](https://www.ruby-forum.com/t/uninitialized-constant-createusers/84844/1 "2007-02-08T01:19:57Z")

</div>

what could be causing this?

- Execute environment  
\*\* Execute db:migrate  
rake aborted!  
uninitialized constant CreateUsers

---

<div class="post-metadata">

**Author:** ![georgeuoa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/7ab992/32.png) [@georgeuoa](https://www.ruby-forum.com/u/georgeuoa)\
**Post date:** [February 8, 2007, 1:26am UTC](https://www.ruby-forum.com/t/uninitialized-constant-createusers/84844/2 "2007-02-08T01:26:06Z")

</div>

> what could be causing this?
> 
> - Execute environment  
> \*\* Execute db:migrate  
> rake aborted!  
> uninitialized constant CreateUsers

Try…

rake --trace db:migrate

and it should tell you where it’s falling over.

---

<div class="post-metadata">

**Author:** ![georgeuoa](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/7ab992/32.png) [@georgeuoa](https://www.ruby-forum.com/u/georgeuoa)\
**Post date:** [February 8, 2007, 2:18am UTC](https://www.ruby-forum.com/t/uninitialized-constant-createusers/84844/3 "2007-02-08T02:18:10Z")

</div>

On 8 feb, 01:19, Tanzanite T. \<rails-mailing-l…@andreas-  
[s.net](http://s.net)\> wrote:

> what could be causing this?
> 
> - Execute environment  
> \*\* Execute db:migrate  
> rake aborted!  
> uninitialized constant CreateUsers
> 
> –  
> Posted viahttp://www.ruby-forum.com/.

Perhaps an empty migration file for CreateUsers migration?