# Problem with acts\_as\_attachment

**URL:** <https://www.ruby-forum.com/t/problem-with-acts-as-attachment/152331>\
**Category:** Rails\
**Created:** [November 2, 2008, 3:28pm UTC](https://www.ruby-forum.com/t/problem-with-acts-as-attachment/152331 "2008-11-02T15:28:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![xxmithila](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/x/ebca7d/32.png) [@xxmithila](https://www.ruby-forum.com/u/xxmithila)\
**Post date:** [November 2, 2008, 3:28pm UTC](https://www.ruby-forum.com/t/problem-with-acts-as-attachment/152331/1 "2008-11-02T15:28:02Z")

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HI…  
I used acts\_as\_attachment plugin ot upload a picture, but it return  
this ERROR when uploading.  
pls help stucked…

error:-

undefined method `after\_attachment\_saved\_callback\_chain’