# Uknown ActiveRecord method

**URL:** <https://www.ruby-forum.com/t/uknown-activerecord-method/143447>\
**Category:** Rails\
**Created:** [July 18, 2008, 6:00pm UTC](https://www.ruby-forum.com/t/uknown-activerecord-method/143447 "2008-07-18T18:00:55Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [July 18, 2008, 6:00pm UTC](https://www.ruby-forum.com/t/uknown-activerecord-method/143447/1 "2008-07-18T18:00:55Z")

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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:** ![jturney](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/e99b99/32.png) [@jturney](https://www.ruby-forum.com/u/jturney)\
**Post date:** [July 18, 2008, 9:22pm UTC](https://www.ruby-forum.com/t/uknown-activerecord-method/143447/2 "2008-07-18T21:22:08Z")

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

On Jul 18, 12:00 pm, Justin To [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)