Please help me! Error generate scaffold

I'm learning about Ruby on Rails. Please help me.
Althougth I do step-by-step with books(config data, generate model, add
data field in db/migrate/file.rb) but i can't generate with scaffold or
error.
When run command: ruby script\generate scaffold Employee
And check: http://127.0.0.1:3000/employees/
--> it shows successful with show,edit,destroy however it can't show
data field although i inserted data in mysql. It shows:

For your information Scaffold is been removed out of core rails in rails
2.0..

Scaffold is available as a plugin now..

U can get "Active scaffold" from "http://activescaffold.com/"
and u can install it by navigating to the project path in command prompt
and by typing
"ruby script/plugin install
http://activescaffold.googlecode.com/svn/tags/active_scaffold"

If you are able to generate scaffold that means you have Sccaffold
installed over your project....i am not sure but the issue might me
when you have generated sccafolding the table might have different
structure and after generation of scaffolding you might have altered
the table structure.. have a look at the generated code to confirm
it....or else try once more with the table structure alreadt defiened
before generating scaffolding...

Scaffold is different in Rails 2.0. When you ran your 'script/generate
scaffold employee' code, it generated the files necessary but since
you did not specify the data fields upfront, it did not add them to
your code. Here is the way you would do it:

'script/generate scaffold employee first_name:string last_name:string
title:string description:text birthday:date'

If you want to add the data fields afterwards, open up the index.rhtml
or index.html.erb file inside the /app/views/employees/ folder and
insde the form, add:

<%= employee.name %><br />
<%= employee.otherfield %>

I highly recommend that you save yourself a lot of confusion and
wasted time by going to www.PeepCode.com and purchasing their Rails
from Scratch Series. It will cost you $18 ($9 per each hour n half
video x 2 videos) but it will give you a strong foundation to build
from. After going through those two videos, go to www.RailsCasts.com
and watch his videos.

Thanks everybody. Especially thank Melvin Ram, I have done successfully.
Scaffold is different in Rails 2.0.