Rails server command not functioning ubuntu 10.04

Question

I have installed rvm ruby 1.9.3 and rails 3.0.5, and am trying right now to enter the "rails server" command line but this is what I get:

badr@Badoo:~/rails_projects/first_app$ rails s
/home/badr/rails_projects/first_app/config/application.rb:7:in `<top (required)>': undefined method `groups' for Rails:Module (NoMethodError)
    from /usr/local/rvm/gems/ruby-1.9.3-p429/gems/railties-3.0.5/lib/rails/commands.rb:28:in `require'
    from /usr/local/rvm/gems/ruby-1.9.3-p429/gems/railties-3.0.5/lib/rails/commands.rb:28:in `block in <top (required)>'
    from /usr/local/rvm/gems/ruby-1.9.3-p429/gems/railties-3.0.5/lib/rails/commands.rb:27:in `tap'
    from /usr/local/rvm/gems/ruby-1.9.3-p429/gems/railties-3.0.5/lib/rails/commands.rb:27:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

I have been following this tutorial . I'm using ubuntu 12.04 lts and I guess I don't need to tell you that I'm a newbie...

I really don't know what's wrong (railties gem? the rvm?), I've been googling for a solution the whole day.

Thanks in advance

Is there a reason you are using such an old stack? Try using ruby 2.0 and rails4 or at least 3.2. I don't know exactly what's wrong here but I guess it somehow could be a problem between your ruby version and your rails version. — Bijan
– Bijan, Commented May 30, 2013 at 13:16
Possible duplication: stackoverflow.com/questions/6822904/… — Yevgeniy Anfilofyev
– Yevgeniy Anfilofyev, Commented May 30, 2013 at 13:18

Community · Accepted Answer · 2017-05-23 12:11:20Z

0

First. update your rails to the current stable version 3.2.13 and see if the error is gone (It will be) also update your ruby to 2

else:

See if this works:

https://stackoverflow.com/a/13275655/1379394

In config/application.rb substitute

if defined?(Bundler)
Bundler.require(*Rails.groups(:assets => %w(development test)))
end

With

Bundler.require(:default, Rails.env) if defined?(Bundler)

And another question. why are you using rails 3.0.5? 3.2.13 released Mar 18, 2013

edited May 23, 2017 at 12:11

CommunityBot

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answered May 30, 2013 at 13:18

Kees Sonnema

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2 Comments

Badr Tazi Over a year ago

Oh thank you so much! :) I installed rails 3.0.5 so that I could follow that tutorial. But I didn't think about that, so I reinstalled everything with the last updates and everyhting works fine now. I guess I need to follow a more recent tutorial/book. thanks again :)

Kees Sonnema Over a year ago

Yes you need to search for tutorials on rails 3.2 or higher. Then you know it will always work. great I could help.

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