Rails - Feb 2010 - uninitialized constant UsersController::User

i  just  created an application  to list the  primary  details of
userbut it is  showing an error lik this
"uninitialized constant UsersController::User"
this is  my  controlller

class UsersController < ApplicationController
puts"hiiiiiiiii"
def index
puts"hiiiiiiiii"
@users = User.find(:all)
puts @users
    respond_to do |format|
    format.html # index.html.erb
    format.xml  { render :xml => @users }
  end

end
end

this is  my  view   file

<h1>Users List</h1>


<table>
  <tr>
    <th>Name</th>
    <th>Age</th>
    <th>Designation</th>
    <th>Hobby</th>
  </tr>

<% @user.each do |user| %>
  <tr>
    <td><%=h user.name %></td>
    <td><%=h user.age %></td>
    <td><%=h user.designation %></td>
    <td><%=h user.hobby %></td>
    <!--<td><%= link_to ''Show'', job
%></td>
    <td><%= link_to ''Edit'', edit_job_path(job)
%></td>
    <td><%= link_to ''Destroy'', job, :confirm =>
''Are you sure?'', :method
=> :delete %></td>-->
  </tr>
<% end %>
</table>

and  my   model is this

class User < ActiveRecord::Base
end
can  anyone tell  how  to solve this
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On Thu, Feb 25, 2010 at 6:14 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> i  just  created an application  to list the  primary  details of
> userbut it is  showing an error lik this
> "uninitialized constant UsersController::User"
Is the user model defined in app/models/user.rb ?

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Xavier Noria wrote:
> On Thu, Feb 25, 2010 at 6:14 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
> wrote:
> 
>> i �just �created an application �to list the �primary �details of
>> userbut it is �showing an error lik this
>> "uninitialized constant UsersController::User"
> 
> Is the user model defined in app/models/user.rb ?
yes it is  defined in app/models/User.rb ?
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On Thu, Feb 25, 2010 at 6:28 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Xavier Noria wrote:
>> On Thu, Feb 25, 2010 at 6:14 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
>> wrote:
>>
>>> i �just �created an application �to list the �primary �details of
>>> userbut it is �showing an error lik this
>>> "uninitialized constant UsersController::User"
>>
>> Is the user model defined in app/models/user.rb ?
>
> yes it is  defined in app/models/User.rb ?
lowercase "u".

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Xavier Noria wrote:
> On Thu, Feb 25, 2010 at 6:28 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
> wrote:
> 
>> yes it is  defined in app/models/User.rb ?
> lowercase "u".
when i changed    to lower  case it shows an  other  error


undefined local variable or method `user'' for 
#<UsersController:0xb6be1a70>
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On Thu, Feb 25, 2010 at 6:46 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
> Xavier Noria wrote:
>> On Thu, Feb 25, 2010 at 6:28 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
>> wrote:
>>
>>> yes it is  defined in app/models/User.rb ?
>> lowercase "u".
> when i changed    to lower  case it shows an  other  error
I mean, the filename has to be "user.rb", with a lowercase
"u".

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Tony Augustine wrote:
> Xavier Noria wrote:
>> On Thu, Feb 25, 2010 at 6:14 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
>> wrote:
>> 
>>> i �just �created an application �to list the �primary �details of
>>> userbut it is �showing an error lik this
>>> "uninitialized constant UsersController::User"
>> 
>> Is the user model defined in app/models/user.rb ?
> 
> yes it is  defined in app/models/User.rb ?
 i  changed     but now its   showing this   error




 Showing app/views/users/index.html.erb where line #13 raised:

You have a nil object when you didn''t expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.each

Extracted source (around line #13):

10:     <th>Hobby</th>
11:   </tr>
12:
13: <% @user.each do |user| %>
14:   <tr>
15:     <td><%=h user.name %></td>
16:     <td><%=h user.age %></td>
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On Thu, Feb 25, 2010 at 7:18 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:
>  i  changed     but now its   showing this   error
>
>
>
>
>  Showing app/views/users/index.html.erb where line #13 raised:
>
> You have a nil object when you didn''t expect it!
> You might have expected an instance of Array.
> The error occurred while evaluating nil.each
>
> Extracted source (around line #13):
>
> 10:     <th>Hobby</th>
> 11:   </tr>
> 12:
> 13: <% @user.each do |user| %>
Note you put the collection in @users, plural. The variable @user is
unset and thus nil, hence the error. You need to replace @user with
@users in the view.

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Xavier Noria wrote:
> On Thu, Feb 25, 2010 at 7:18 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
> wrote:
> 
>>
>> Extracted source (around line #13):
>>
>> 10: � � <th>Hobby</th>
>> 11: � </tr>
>> 12:
>> 13: <% @user.each do |user| %>
> 
> Note you put the collection in @users, plural. The variable @user is
> unset and thus nil, hence the error. You need to replace @user with
> @users in the view.
thanks  a  lot  for   replying   to  ma  silly   doubts
 an  wy   cya
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<% for user in @users %>
<tr>
    <td><%=h user.name %></td>
     <td><%=h user.age %></td>
</tr>
<%end%>




check it out
On Thu, Feb 25, 2010 at 11:52 AM, Xavier Noria
<fxn-xlncskNFVEJBDgjK7y7TUQ@public.gmane.org> wrote:
> On Thu, Feb 25, 2010 at 7:18 AM, Tony Augustine
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
> wrote:
>
> >  i  changed     but now its   showing this   error
> >
> >
> >
> >
> >  Showing app/views/users/index.html.erb where line #13 raised:
> >
> > You have a nil object when you didn''t expect it!
> > You might have expected an instance of Array.
> > The error occurred while evaluating nil.each
> >
> > Extracted source (around line #13):
> >
> > 10:     <th>Hobby</th>
> > 11:   </tr>
> > 12:
> > 13: <% @user.each do |user| %>
>
> Note you put the collection in @users, plural. The variable @user is
> unset and thus nil, hence the error. You need to replace @user with
> @users in the view.
>
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>

-- 
Thanks:
Rajeev sharma

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