# Rails 3 Error:uninitialized constant ActiveResource::Base

**URL:** <https://www.ruby-forum.com/t/rails-3-error-uninitialized-constant-activeresource-base/189057>\
**Category:** Rails\
**Created:** [May 23, 2010, 2:25pm UTC](https://www.ruby-forum.com/t/rails-3-error-uninitialized-constant-activeresource-base/189057 "2010-05-23T14:25:53Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![DmitryPush](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/46a35a/32.png) [@DmitryPush](https://www.ruby-forum.com/u/DmitryPush)\
**Post date:** [May 23, 2010, 2:25pm UTC](https://www.ruby-forum.com/t/rails-3-error-uninitialized-constant-activeresource-base/189057/1 "2010-05-23T14:25:53Z")

</div>

I’v just install rails3 for try it out.  
I was following “getting started guide”:  
rm public/index.html,  
change routes…

and then i try to open page i’v got an error.

OS: ubunto 10.04  
Rails info:  
dpush@dpush-desktop:~/rails\_proj/blog/public$ ruby -v  
ruby 1.8.7 (2010-01-10 patchlevel 249) [x86\_64-linux]  
dpush@dpush-desktop:~/rails\_proj/blog/public$ rails -v  
Rails 3.0.0.beta3  
dpush@dpush-desktop:~/rails\_proj/blog/public$ gem list

\*\*\* LOCAL GEMS \*\*\*

abstract (1.0.0)  
actionmailer (3.0.0.beta3)  
actionpack (3.0.0.beta3)  
activemodel (3.0.0.beta3)  
activerecord (3.0.0.beta3)  
activeresource (3.0.0.beta3)  
activesupport (3.0.0.beta3, 2.3.6)  
arel (0.3.3)  
builder (2.1.2)  
bundler (0.9.25)  
erubis (2.6.5)  
i18n (0.3.7)  
mail (2.2.1)  
memcache-client (1.8.3)  
mime-types (1.16)  
polyglot (0.3.1)  
rack (1.1.0)  
rack-mount (0.6.3)  
rack-test (0.5.3)  
rails (3.0.0.beta3)  
railties (3.0.0.beta3)  
rake (0.8.7)  
text-format (1.0.0)  
text-hyphen (1.0.0)  
thor (0.13.6)  
treetop (1.4.5)  
tzinfo (0.3.20)

ERROR NameError: uninitialized constant ActiveResource::Base  
/usr/lib/ruby/gems/1.8/gems/activeresource-3.0.0.beta3/lib/  
active\_resource/railties/log\_subscriber.rb:11:in `logger' /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta3/lib/action_view/ template.rb:107:in`to\_proc’  
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/  
log\_subscriber.rb:75:in `map' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/ log_subscriber.rb:75:in`flush\_all!’  
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/rack/  
logger.rb:29:in `after_dispatch' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/rack/ logger.rb:15:in`call’  
/usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/runtime.rb:17:in  
`call' /usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in`call’  
/usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in  
`synchronize' /usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in`call’  
/usr/lib/ruby/gems/1.8/gems/actionpack-3.0.0.beta3/lib/  
action\_dispatch/middleware/static.rb:30:in `call' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/ application.rb:132:in`call’  
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/  
application.rb:81:in `send' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/ application.rb:81:in`method\_missing’  
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/rack/  
log\_tailer.rb:15:in `call' /usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/content_length.rb: 13:in`call’  
/usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/handler/webrick.rb:  
48:in `service' /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in`service’  
/usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' /usr/lib/ruby/1.8/webrick/server.rb:173:in`start\_thread’  
/usr/lib/ruby/1.8/webrick/server.rb:162:in `start' /usr/lib/ruby/1.8/webrick/server.rb:162:in`start\_thread’  
/usr/lib/ruby/1.8/webrick/server.rb:95:in `start' /usr/lib/ruby/1.8/webrick/server.rb:92:in`each’  
/usr/lib/ruby/1.8/webrick/server.rb:92:in `start' /usr/lib/ruby/1.8/webrick/server.rb:23:in`start’  
/usr/lib/ruby/1.8/webrick/server.rb:82:in `start' /usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/handler/webrick.rb: 14:in`run’  
/usr/lib/ruby/gems/1.8/gems/rack-1.1.0/lib/rack/server.rb:155:in  
`start' /usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/commands/ server.rb:62:in`start’  
/usr/lib/ruby/gems/1.8/gems/railties-3.0.0.beta3/lib/rails/  
commands.rb:42  
script/rails:9:in `require’  
script/rails:9

any help?