Rails - Jan 2010 - Rails 3 Problem: no such file to load -- rails (LoadError)

I just ran the gem bundle on the third_rails demo app, but for some
reason rails can''t be loaded!?

kristian-mandrups-macbook-pro:third_rails kristianconsult$ rails -v
Rails 3.0.pre

kristian-mandrups-macbook-pro:third_rails kristianconsult$ script/
generate model Post name:string
/Users/kristianconsult/my_rails/rails3_apps/third_rails/config/boot.rb:
71:in `require'': no such file to load -- rails (LoadError)
	from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
boot.rb:71:in `load_initializer''
	from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
boot.rb:44:in `run''
	from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
boot.rb:16:in `boot!''
	from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
boot.rb:148
	from script/generate:2:in `require''
	from script/generate:2
kristian-mandrups-macbook-pro:third_rails kristianconsult$ script/
console
/Users/kristianconsult/my_rails/rails3_apps/third_rails/config/boot.rb:
71:in `require'': no such file to load -- rails (LoadError)
...

Anyone?

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You need to bundle your rails into the Rails 3 app. Did you do that?

Also make sure that if you use multiple versions of Ruby, you will
need either to re-bundle your gems under the one you decided to use
after switching, or to add a symlink in vendor/gems/ruby.

Hope it solves the problem.

Aleksey

On Jan 20, 10:06 pm, Kristian
<kmand...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I just ran the gem bundle on the third_rails demo app, but for some
> reason rails can''t be loaded!?
>
> kristian-mandrups-macbook-pro:third_rails kristianconsult$ rails -v
> Rails 3.0.pre
>
> kristian-mandrups-macbook-pro:third_rails kristianconsult$ script/
> generate model Post name:string
> /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/boot.rb:
> 71:in `require'': no such file to load -- rails (LoadError)
>         from
/Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:71:in `load_initializer''
>         from
/Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:44:in `run''
>         from
/Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:16:in `boot!''
>         from
/Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:148
>         from script/generate:2:in `require''
>         from script/generate:2
> kristian-mandrups-macbook-pro:third_rails kristianconsult$ script/
> console
> /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/boot.rb:
> 71:in `require'': no such file to load -- rails (LoadError)
> ...
>
> Anyone?
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On Wed, Jan 20, 2010 at 3:06 AM, Kristian
<kmandrup-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> I just ran the gem bundle on the third_rails demo app, but for some
> reason rails can''t be loaded!?
>
> kristian-mandrups-macbook-pro:third_rails kristianconsult$ rails -v
> Rails 3.0.pre
>
> kristian-mandrups-macbook-pro:third_rails kristianconsult$ script/
> generate model Post name:string
> /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/boot.rb:
> 71:in `require'': no such file to load -- rails (LoadError)
>        from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:71:in `load_initializer''
>        from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:44:in `run''
>        from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:16:in `boot!''
>        from /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/
> boot.rb:148
>        from script/generate:2:in `require''
>        from script/generate:2
> kristian-mandrups-macbook-pro:third_rails kristianconsult$ script/
> console
> /Users/kristianconsult/my_rails/rails3_apps/third_rails/config/boot.rb:
> 71:in `require'': no such file to load -- rails (LoadError)
> ...
>
> Anyone?
>
>
If you''ew using Rails 3.0.pre, then I would recommend doing the
following:

0)  follow the instructions here first

    http://weblog.rubyonrails.org/2010/1/1/getting-a-new-app-running-on-edge

a)  see if similar ticket exists here

     https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/overview

b)  if (a) exists, then add your comments to that ticket.  Otherwise, please
file another ticket providing the following:

     -  ruby version (i.e. ruby -v)
     -  OS  version
     -  the exact steps to recreate the issue in a understandable stepwise
format

Lastly, I would recommend the above steps for all people interested using
Rails 3.0.pre because these types of issues
need to be made aware to the Rails core team.

Good luck,

-Conrad

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