# \`observer' for AccountController:Class"

**URL:** <https://www.ruby-forum.com/t/observer-for-accountcontroller-class/175839>\
**Category:** Rails\
**Created:** [September 21, 2009, 7:21am UTC](https://www.ruby-forum.com/t/observer-for-accountcontroller-class/175839 "2009-09-21T07:21:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fireflyman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/43a26b/32.png) [@fireflyman](https://www.ruby-forum.com/u/fireflyman)\
**Post date:** [September 21, 2009, 7:21am UTC](https://www.ruby-forum.com/t/observer-for-accountcontroller-class/175839/1 "2009-09-21T07:21:52Z")

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hi, I’ve just changed to rails 2.0 and got “undefined method  
`observer’ for AccountController:Class”  
What can i do for this problem?

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<div class="post-metadata">

**Author:** ![fireflyman](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/43a26b/32.png) [@fireflyman](https://www.ruby-forum.com/u/fireflyman)\
**Post date:** [September 21, 2009, 7:24am UTC](https://www.ruby-forum.com/t/observer-for-accountcontroller-class/175839/2 "2009-09-21T07:24:48Z")

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This example come from