# Cannot launch ruby server **URL:** \ **Category:** rubyonrails-talk\ **Created:** [October 17, 2011, 10:35am UTC](https://discuss.rubyonrails.org/t/cannot-launch-ruby-server/61303 "2011-10-17T10:35:34Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![11155](https://avatars.discourse-cdn.com/v4/letter/1/d26b3c/32.png) [@11155](https://discuss.rubyonrails.org/u/11155)\ **Post date:** [October 17, 2011, 10:35am UTC](https://discuss.rubyonrails.org/t/cannot-launch-ruby-server/61303/1 "2011-10-17T10:35:34Z")
Hi, I am on Mac OS X Lion. I installed Ruby on Rails and mysql2 gem. When I try to run the server with "rails server" command, I get the following errors: /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle: dlopen(/Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)   Referenced from: /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle   Reason: image not found - /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2/mysql2.bundle   from /Library/Ruby/Gems/1.8/gems/mysql2-0.3.7/lib/mysql2.rb:9   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require'   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require'   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each'   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `require'   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each'   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require'   from /Library/Ruby/Gems/1.8/gems/bundler-1.0.21/lib/bundler.rb:122:in `require'   from /Users/Admin/Sites/simple_cms/config/application.rb:7   from /Library/Ruby/Gems/1.8/gems/railties-3.1.1/lib/rails/commands.rb:52:in `require'   from /Library/Ruby/Gems/1.8/gems/railties-3.1.1/lib/rails/commands.rb:52   from /Library/Ruby/Gems/1.8/gems/railties-3.1.1/lib/rails/commands.rb:49:in `tap'   from /Library/Ruby/Gems/1.8/gems/railties-3.1.1/lib/rails/commands.rb:49   from script/rails:6:in `require'   from script/rails:6 Could anyone help me? Thanks, Eleeist ---
**Author:** ![Alexander\_Criollo](https://avatars.discourse-cdn.com/v4/letter/a/b9bd4f/32.png) [@Alexander\_Criollo](https://discuss.rubyonrails.org/u/Alexander_Criollo)\ **Post date:** [October 17, 2011, 11:06am UTC](https://discuss.rubyonrails.org/t/cannot-launch-ruby-server/61303/2 "2011-10-17T11:06:52Z")
You have installed mysql ? ---
**Author:** ![Dan6](https://avatars.discourse-cdn.com/v4/letter/d/d2c977/32.png) [@Dan6](https://discuss.rubyonrails.org/u/Dan6)\ **Post date:** [October 17, 2011, 12:20pm UTC](https://discuss.rubyonrails.org/t/cannot-launch-ruby-server/61303/3 "2011-10-17T12:20:59Z")
My guess is that you are tripping over some of the OS X preinstalled ruby components. I suggest that you start fresh with RVM using the single-user scenario, (see [http://beginrescueend.com/](http://beginrescueend.com/) ) and try again. Dan Nachbar