# Beginner Problem

**URL:** <https://www.ruby-forum.com/t/beginner-problem/132676>\
**Category:** Rails\
**Created:** [March 23, 2008, 3:05am UTC](https://www.ruby-forum.com/t/beginner-problem/132676 "2008-03-23T03:05:55Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![MrSWatson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/46a35a/32.png) [@MrSWatson](https://www.ruby-forum.com/u/MrSWatson)\
**Post date:** [March 23, 2008, 3:05am UTC](https://www.ruby-forum.com/t/beginner-problem/132676/1 "2008-03-23T03:05:55Z")

</div>

Hello,

I am having trouble getting the scaffold :product command. Any ideas?

The web page reads,

NoMethodError in AdminController#index

undefined method `scaffold’ for AdminController:Class

RAILS\_ROOT: C:/InstantRails/rails\_apps/depot  
Application Trace | Framework Trace | Full Trace

app/controllers/admin\_controller.rb:2

c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:203:in `load_without_new_constant_marking' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:203:in`load\_file’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:342:in `new_constants_in' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:202:in`load\_file’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:94:in `require_or_load' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:248:in`load\_missing\_constant’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:453:in `const_missing' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:465:in`const\_missing’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
inflector.rb:257:in `constantize' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ core_ext/string/inflections.rb:148:in`constantize’  
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/  
routing.rb:1426:in `recognize' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/ dispatcher.rb:170:in`handle\_request’  
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/  
dispatcher.rb:115:in `dispatch' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/ dispatcher.rb:126:in`dispatch\_cgi’  
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/  
dispatcher.rb:9:in `dispatch' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 112:in`handle\_dispatch’  
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick\_server.rb:78:in  
`service' c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in`service’  
c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' c:/ruby/lib/ruby/1.8/webrick/server.rb:173:in`start\_thread’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in`start\_thread’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in`each’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in`start’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in`dispatch’  
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/  
webrick.rb:66  
c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:496:in `require' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:342:in`new\_constants\_in’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:496:in `require' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`require’  
script/server:3

app/controllers/admin\_controller.rb:2  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:203:in `load_without_new_constant_marking' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:203:in`load\_file’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:342:in `new_constants_in' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:202:in`load\_file’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:94:in `require_or_load' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:248:in`load\_missing\_constant’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:453:in `const_missing' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:465:in`const\_missing’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
inflector.rb:257:in `constantize' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ core_ext/string/inflections.rb:148:in`constantize’  
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/  
routing.rb:1426:in `recognize' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/ dispatcher.rb:170:in`handle\_request’  
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/  
dispatcher.rb:115:in `dispatch' c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action_controller/ dispatcher.rb:126:in`dispatch\_cgi’  
c:/ruby/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/action\_controller/  
dispatcher.rb:9:in `dispatch' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 112:in`handle\_dispatch’  
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick\_server.rb:78:in  
`service' c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in`service’  
c:/ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' c:/ruby/lib/ruby/1.8/webrick/server.rb:173:in`start\_thread’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:162:in`start\_thread’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:95:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in`each’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:92:in `start' c:/ruby/lib/ruby/1.8/webrick/server.rb:23:in`start’  
c:/ruby/lib/ruby/1.8/webrick/server.rb:82:in `start' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:62:in`dispatch’  
c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/  
webrick.rb:66  
c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:496:in `require' c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/ dependencies.rb:342:in`new\_constants\_in’  
c:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active\_support/  
dependencies.rb:496:in `require' c:/ruby/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:39 c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`gem\_original\_require’  
c:/ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`require’  
script/server:3

Request

Parameters:

None

Show session dump

* * *

flash: !map:ActionController::Flash::FlashHash {}

Response

Headers:

{“cookie”=\>[],  
“Cache-Control”=\>“no-cache”}

---

<div class="post-metadata">

**Author:** ![MrSWatson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/46a35a/32.png) [@MrSWatson](https://www.ruby-forum.com/u/MrSWatson)\
**Post date:** [March 23, 2008, 3:11am UTC](https://www.ruby-forum.com/t/beginner-problem/132676/2 "2008-03-23T03:11:47Z")

</div>

On the controller, the code is as follows:

class AdminController \< ApplicationController  
scaffold :product  
end

---

<div class="post-metadata">

**Author:** ![MrSWatson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/46a35a/32.png) [@MrSWatson](https://www.ruby-forum.com/u/MrSWatson)\
**Post date:** [March 23, 2008, 10:37am UTC](https://www.ruby-forum.com/t/beginner-problem/132676/3 "2008-03-23T10:37:23Z")

</div>

On 23 Mar 2008, at 02:10, Mr. Watson wrote:

> On the controller, the code is as follows:
> 
> class AdminController \< ApplicationController  
> scaffold :product  
> end

> On Mar 22, 9:04 pm, “Mr. Watson” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:
> 
> > Hello,
> > 
> > I am having trouble getting the scaffold :product command. Any ideas?

Rails has changed: that doesn’t exist any more (except as an optional  
plugin). There have been a few posts here with helpful writeups of how  
to get going again, but I can’t seem to locate them right now.

Fred