I read the following book this weekend

<Agile Web Development with Rails, 2nd Edition>

and do the exam it mentions, but there is a problem.

Q: NoMethodError (undefined method `scaffold’ for AdminController:Class):

A: my rails version is 2.3.2

the “scaffold” method was removed in Rails 2.0.

in order to resolve it , just run the following commands in the app directory

script/plugin install scaffolding

script/plugin install svn://errtheblog.com/svn/plugins/will_paginate

when u want to practice with the examples, just install the lower version

gem install rails –version 1.2.6 –include-dependencies