# Comments extension error

**URL:** <https://www.ruby-forum.com/t/comments-extension-error/111287>\
**Category:** Radiant CMS\
**Created:** [August 5, 2007, 1:20am UTC](https://www.ruby-forum.com/t/comments-extension-error/111287 "2007-08-05T01:20:11Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![casper\_the\_ghost](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/58956e/32.png) [@casper\_the\_ghost](https://www.ruby-forum.com/u/casper_the_ghost)\
**Post date:** [August 5, 2007, 1:20am UTC](https://www.ruby-forum.com/t/comments-extension-error/111287/1 "2007-08-05T01:20:11Z")

</div>

When I try and run rake production db:migrate after installing the  
comments extension (by Art of mission) I recieve the following error,  
any ideas?

removed\_email\_address@domain.invalid [~/radapp]# rake production  
db:migrate:extensions  
(in /home/wedemo3/radapp)  
rake aborted!  
undefined method `page\_edit\_parts’ for #Radiant::AdminUI:0xb7a40ba8

(See full trace by running task with --trace)