Polymathic

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NoMethodError (undefined method `finder’) with Engines and Rails 2.2

I was getting this error with Rails 2.2 when using ActionMailer.

NoMethodError (undefined method `finder’ for #<ActionView::Base:0x34146fc>)

It stems from a line in engines/lib/engines/rails_extensions/action_mailer.rb

This is some problem between Rails 2.2 and Engines. Reinstalling engines didn’t seem to help.

Simply put, you need to go here and apply this patch:

http://github.com/lazyatom/engines/commit/499ce3b0480d8fa9375203f5efcadb8cf6ea9efe

This took me hours to figure out. I don’t know why there isn’t any more help on this problem.


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One response to “NoMethodError (undefined method `finder’) with Engines and Rails 2.2”

  1. Thank you, thank you, thank you… I ran into this problem only when running my unit tests.

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Visionary leader driving digital transformation across higher education and Fortune 500 companies. Pioneered AI integration at Emory University, including GenAI and AI agents, while spearheading faculty information systems and student entrepreneurship initiatives. Led crisis management during pandemic, transitioning 200+ courses online and revitalizing continuing education through AI-driven improvements. Designed, built, and launched the Emory Center for Innovation. Combines Ph.D. in Philosophy with deep tech expertise to navigate ethical implications of emerging technologies. International experience includes DAAD fellowship in Germany. Proven track record in thought leadership, workforce development, and driving profitability in diverse sectors.

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