# Undefined method \`acts\_as\_attachment' for Photo:Class

**URL:** <https://www.ruby-forum.com/t/undefined-method-acts-as-attachment-for-photo-class/86887>\
**Category:** Rails\
**Created:** [February 26, 2007, 7:08pm UTC](https://www.ruby-forum.com/t/undefined-method-acts-as-attachment-for-photo-class/86887 "2007-02-26T19:08:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![scott](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/3e96dc/32.png) [@scott](https://www.ruby-forum.com/u/scott)\
**Post date:** [February 26, 2007, 7:08pm UTC](https://www.ruby-forum.com/t/undefined-method-acts-as-attachment-for-photo-class/86887/1 "2007-02-26T19:08:36Z")

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Hi,

I am trying to use the Acts as Attachment plugin and running into the  
following error:

undefined method `acts\_as\_attachment’ for Photo:Class

Here’s the steps I took:

script/plugin source [http://svn.techno-weenie.net/projects/plugins](http://svn.techno-weenie.net/projects/plugins)  
script/plugin install acts\_as\_attachment  
script/generate attachment\_model photo  
rake rails:freeze:gems

Here’s my photo.rb file:

class Photo \< ActiveRecord::Base  
belongs\_to :product  
acts\_as\_attachment :storage =\> :file\_system, :max\_size =\>  
300.kilobytes, :content\_type =\> :image  
validates\_as\_attachment  
end

Any ideas?

Thanks,

Scott

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<div class="post-metadata">

**Author:** ![scott](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/3e96dc/32.png) [@scott](https://www.ruby-forum.com/u/scott)\
**Post date:** [February 26, 2007, 8:38pm UTC](https://www.ruby-forum.com/t/undefined-method-acts-as-attachment-for-photo-class/86887/2 "2007-02-26T20:38:51Z")

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Fixed it. For some reason, the script/plugin install  
acts\_as\_attachment didn’t seem to install properly. I ran it again and  
it installed correctly the second time.

Scott

---

<div class="post-metadata">

**Author:** ![scott](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/3e96dc/32.png) [@scott](https://www.ruby-forum.com/u/scott)\
**Post date:** [March 29, 2007, 9:56am UTC](https://www.ruby-forum.com/t/undefined-method-acts-as-attachment-for-photo-class/86887/3 "2007-03-29T09:56:36Z")

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had the same problem. restarting the server helped.

siegi