# Starting mongrel rails server error **URL:** \ **Category:** Rails\ **Created:** [May 15, 2008, 10:53pm UTC](https://www.ruby-forum.com/t/starting-mongrel-rails-server-error/137747 "2008-05-15T22:53:39Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![smitty26](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/ce7236/32.png) [@smitty26](https://www.ruby-forum.com/u/smitty26)\ **Post date:** [May 15, 2008, 10:53pm UTC](https://www.ruby-forum.com/t/starting-mongrel-rails-server-error/137747/1 "2008-05-15T22:53:39Z")
I have a new rails installation on a Mac and am running into problems when trying to start my mongrel server (mongrel\_rails start). The application I’m working on was created from an older version of rails (windows); could that be the problem? If so, how can I resolve this? Any help is appreciated… \*\* Starting Mongrel listening at 0.0.0.0:3000 \*\* Starting Rails with development environment… /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active\_record/connection\_adapters/abstract/connection\_specification.rb: 14: undefined method `cattr_accessor' for ActiveRecord::Base:Class (NoMethodError) from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 27:in`gem\_original\_require’ from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `require' from /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.15.3/lib/ active_record/connection_adapters/abstract_adapter.rb:10 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 27:in`gem\_original\_require’ from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `require' from /Users/marksmith/src/apps/sasg3/trunk/config/db2odbc_adapter.rb: 82 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb: 27:in`gem\_original\_require’ from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb: 27:in `require' ... 12 levels... from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/../lib/ mongrel/command.rb:212:in`run’ from /usr/local/lib/ruby/gems/1.8/gems/mongrel-1.1.4/bin/ mongrel\_rails:281 from /usr/local/bin/mongrel\_rails:19:in `load’ from /usr/local/bin/mongrel\_rails:19 ---
**Author:** ![smitty26](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/ce7236/32.png) [@smitty26](https://www.ruby-forum.com/u/smitty26)\ **Post date:** [May 16, 2008, 12:14am UTC](https://www.ruby-forum.com/t/starting-mongrel-rails-server-error/137747/2 "2008-05-16T00:14:12Z")
Are you sure you have the activesupport gem installed? Try: sudo gem install activesupport and then see if your server will boot up. ESPNDev ---
**Author:** ![smitty26](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/ce7236/32.png) [@smitty26](https://www.ruby-forum.com/u/smitty26)\ **Post date:** [May 16, 2008, 3:38pm UTC](https://www.ruby-forum.com/t/starting-mongrel-rails-server-error/137747/3 "2008-05-16T15:38:41Z")
My initial thoughts were along those lines; maybe my installation was corrupt or I installed something in the wrong order so I uninstalled all gems and then uninstalled rails. From there I reinstalled rails from scratch. This is only happening with this existing project. If I create a new project mongrels starts like a champ. \*\*\* LOCAL GEMS \*\*\* actionmailer (2.0.2, 1.3.3) actionpack (2.0.2, 1.13.3) actionwebservice (1.2.3) activerecord (2.0.2, 1.15.3) activeresource (2.0.2) activesupport (2.0.2, 1.4.2) capistrano (2.3.0) cgi\_multipart\_eof\_fix (2.5.0) daemons (1.0.10) fastthread (1.0.1) gem\_plugin (0.2.3) highline (1.4.0) hoe (1.5.1) mongrel (1.1.4) mysql (2.7) net-scp (1.0.0) net-sftp (2.0.0) net-ssh (2.0.1) net-ssh-gateway (1.0.0) ParseTree (2.1.1) rails (2.0.2, 1.2.3) rake (0.8.1) RedCloth (3.0.4) rspec (1.1.3) ruby2ruby (1.1.8) rubyforge (0.4.5) RubyInline (3.6.7) sake (1.0.14) termios (0.9.4) On May 15, 6:13 pm, “removed\_email\_address@domain.invalid” \ **Author:** ![smitty26](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/ce7236/32.png) [@smitty26](https://www.ruby-forum.com/u/smitty26)\ **Post date:** [May 16, 2008, 3:45pm UTC](https://www.ruby-forum.com/t/starting-mongrel-rails-server-error/137747/4 "2008-05-16T15:45:11Z") On 15 May 2008, at 21:36, smitty26 wrote: > I have a new rails installation on a Mac and am running into problems > when trying to start my mongrel server (mongrel\_rails start). The > application I’m working on was created from an older version of rails > (windows); could that be the problem? If so, how can I resolve this? > Any help is appreciated… Does environment.rb nominate a particular version of rails to use (and is that version installed?) Fred ---
**Author:** ![smitty26](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/ce7236/32.png) [@smitty26](https://www.ruby-forum.com/u/smitty26)\ **Post date:** [May 16, 2008, 4:14pm UTC](https://www.ruby-forum.com/t/starting-mongrel-rails-server-error/137747/5 "2008-05-16T16:14:40Z")
It does, 1.2.3 and I installed it via the gem command (sudo gem install rails -v 1.2.3). Still no luck. On May 16, 9:44 am, Frederick C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)