I am running into the same issue. Any help would be greatly
appreciated!

On Jan 18, 2:07 am, Vadim Lazuko <[email protected]> wrote:
> I'm going through rapid-rails-3-with-hobo-2011-01-10-draft-up-to-
> tutorial-21.pdf creating similar project with some small changes.
>
> After creation Recipe connected to Ingredients with one-to-many
> relation through ingredient_assignments table I was trying to extend
> the Ingredient model with "children :recipes" line.
>
> This resulted in "undefinedmethod`class_name' fornil:NilClass"
> error which later prevent all tasks (rails server, hobo g migrate)
> from execution.
>
> If I comment "children :recipes" out - I'm able to start server, but I
> don't have required functionality.
>
> Where do you recommend to check for an error to fix this?

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