# Uknown ActiveRecord method

**URL:** <https://discuss.rubyonrails.org/t/uknown-activerecord-method/32043>\
**Category:** rubyonrails-talk\
**Created:** [July 18, 2008, 4:00pm UTC](https://discuss.rubyonrails.org/t/uknown-activerecord-method/32043 "2008-07-18T16:00:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![11175](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@11175](https://discuss.rubyonrails.org/u/11175)\
**Post date:** [July 18, 2008, 4:00pm UTC](https://discuss.rubyonrails.org/t/uknown-activerecord-method/32043/1 "2008-07-18T16:00:55Z")

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NoMethodError in Auth userController#new\_requirement

undefined method `find\_by\_id' for #\<Class:0x4628d34\>

Method in application controller: User.find\_by\_id(session[:user\_id])

id is one of the columns of my users table...

What could be wrong?

Thanks

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<div class="post-metadata">

**Author:** ![julian4](https://avatars.discourse-cdn.com/v4/letter/j/77aa72/32.png) [@julian4](https://discuss.rubyonrails.org/u/julian4)\
**Post date:** [July 18, 2008, 7:21pm UTC](https://discuss.rubyonrails.org/t/uknown-activerecord-method/32043/2 "2008-07-18T19:21:34Z")

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User.find(session[:user\_id]).