# ArgumentError in Controller#new after updating Rails version

**URL:** <https://discuss.rubyonrails.org/t/argumenterror-in-controller-new-after-updating-rails-version/67093>\
**Category:** rubyonrails-talk\
**Created:** [May 27, 2013, 6:04am UTC](https://discuss.rubyonrails.org/t/argumenterror-in-controller-new-after-updating-rails-version/67093 "2013-05-27T06:04:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Kang\_Cao](https://avatars.discourse-cdn.com/v4/letter/k/ecc23a/32.png) [@Kang\_Cao](https://discuss.rubyonrails.org/u/Kang_Cao)\
**Post date:** [May 27, 2013, 6:04am UTC](https://discuss.rubyonrails.org/t/argumenterror-in-controller-new-after-updating-rails-version/67093/1 "2013-05-27T06:04:36Z")

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I think you should check your routes.rb file.

kang