# OpenID relative\_url\_root problems

**URL:** <https://www.ruby-forum.com/t/openid-relative-url-root-problems/164781>\
**Category:** Rails\
**Created:** [April 5, 2009, 11:56pm UTC](https://www.ruby-forum.com/t/openid-relative-url-root-problems/164781 "2009-04-05T23:56:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Schalk\_N](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b782af/32.png) [@Schalk\_N](https://www.ruby-forum.com/u/Schalk_N)\
**Post date:** [April 5, 2009, 11:56pm UTC](https://www.ruby-forum.com/t/openid-relative-url-root-problems/164781/1 "2009-04-05T23:56:42Z")

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Hi there,

I am trying to get OpenID authentication working and for the most part  
seems to have gone fine except, when authentication I keep getting:

undefined method `relative\_url\_root’ for ActionController::Base:Class

I am testing from my local machine on Windows Vista using Mongrel. Any  
ideas why I am getting this error?

Thank you in advance,  
Schalk