Ruby Error: "No such file or directory -- script/generate (LoadError)"

I know that this error has been discussed elsewhere on the web, and this may seem like a stupid question, but I've got a very strange situation on my hands here.

I'm running on Snow Leopard, with 开发者_如何学运维fully updated Ruby and Rails gems. I created a new Rails project using ruby new testing, then navigated into that folder using cd ~/testing, and tried to create a basic scaffolding using ruby script/generate scaffold newtest name:string, and I got this error back:

ruby: No such file or directory -- script/generate (LoadError)

I have searched Google thoroughly and tried to implement every solution that I could, but nothing has been working. I don't understand why I have this error or how to fix it.

If you are on rails 3 then the command is:

rails generate scaffold newtest name:string

Or the slightly shorter:

rails g scaffold newtest name:string

Notice rails not ruby.

If you're on Rails 3, you need to use the rails command instead, which now does much of the scripting.

(This is according to another StackOverflow question.)

If you're using the latest version of rails then you no longer use script/generate.

In Rails 3 try using something like this instead:

cd ~/testing
rails generate scaffold Post name:string title:string content:text

You can find more info on the difference between rails 2 and rails 3 here if you like:

http://www.viget.com/extend/rails-3-generators-scaffolding/