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Article:		Rolling with Ruby on Rails
Subject:		Action Control:Exception caught
Date:		2006-03-30 07:53:04
From:		doori

I am a new Ruby User and started working with it previously. As I tried to finish the first tutorial I caught this exception: You have a nil object when you didn't expect it! The error occured while evaluating nil.name ...on line #18: <td><%= recipe.category.name %></td> I had a look at the previous posts, but didn't find a suitable solution. Did anyone have the same error and can help me to figure it out? thx!

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Action Control:Exception caught
2006-03-30 07:58:35 Curt Hibbs | [View]

The recipe you are trying to display probably does not have a category assigned to it -- check your database. If the category_id field is null, then "recipe.category" will return the value "nil" instead of a category object, and since the "nil" object doesn't have a "name" method, you get this error.