# Installation Issue

**URL:** <https://www.ruby-forum.com/t/installation-issue/178843>\
**Category:** Rails\
**Created:** [November 12, 2009, 4:07am UTC](https://www.ruby-forum.com/t/installation-issue/178843 "2009-11-12T04:07:11Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![rswaving](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/77aa72/32.png) [@rswaving](https://www.ruby-forum.com/u/rswaving)\
**Post date:** [November 12, 2009, 4:07am UTC](https://www.ruby-forum.com/t/installation-issue/178843/1 "2009-11-12T04:07:11Z")

</div>

Hi,

First of all, I have been searching through the forum to try to resolve  
this problem.

I’m walking through some tutorials from [lynda.com](http://lynda.com) and after I issue the  
command “rails my\_app”, everything seems to go fine. I am able to  
browse my application on WEBrick via [http://localhost:3000](http://localhost:3000).

However, if I click on the RoR-generated “About your application’s  
environment” (under “You’re riding Ruby on Rails!”, I get the following  
error message:

“We’re sorry, but something went wrong. We’ve been notified about this  
issue and we’ll take a look at it shortly.”

This error was first found after I added a simple controller and view to  
my project and attempted to browse to [http://localhost/say/hello](http://localhost/say/hello) → I  
got the same error.

The first thing I did was to stop the IIS 7 service then restart WEBrick  
but that didn’t help.

I then checked the development.log which led me to this post:  
[http://www.ruby-forum.com/topic/136133](http://www.ruby-forum.com/topic/136133)

So, I deleted the entire project and recreated it by using “rails -d  
mysql my\_app”. Same problem. I then tried “gem install sqlite3-ruby”.  
That didn’t help either.

As of now, this is where I stand.

/!\ FAILSAFE /!\ Wed Nov 11 21:51:23 -0500 2009  
Status: 500 Internal Server Error  
no such file to load – mysql  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:156:in  
`require' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new\_constants\_in’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:156:in  
`require' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/requires.rb:7:in `require\_library\_or\_gem’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/core\_ext/kernel/reporting.rb:11:in  
`silence_warnings' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/requires.rb:5:in `require\_library\_or\_gem’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/mysql\_adapter.rb:60:in  
`mysql_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:223:in  
`new_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout\_new\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:188:in  
`checkout' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:184:in  
`checkout' C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:183:in  
`checkout' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:326:in  
`retrieve_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:115:in  
`connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:9:in `cache’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/query\_cache.rb:28:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/params\_parser.rb:15:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:93:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/failsafe.rb:26:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in  
`synchronize' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/dispatcher.rb:114:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/reloader.rb:34:in `run’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/dispatcher.rb:108:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/log_tailer.rb:17:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content\_length.rb:13:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in `service’  
C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' C:/Ruby/lib/ruby/1.8/webrick/server.rb:95:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `each' C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:23:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:82:in `start’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:14:in  
`run' C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/server.rb:111 C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`require' C:/Projects/my_app/script/server.rb:3 /!\ FAILSAFE /!\ Wed Nov 11 21:54:35 -0500 2009 Status: 500 Internal Server Error no such file to load -- mysql C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`require' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:521:in  
`new_constants_in' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/core\_ext/kernel/requires.rb:7:in  
`require_library_or_gem' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence\_warnings’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/core\_ext/kernel/requires.rb:5:in  
`require_library_or_gem' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/mysql_adapter.rb:60:in `mysql\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:223:in  
`send' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:245:in  
`checkout_new_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:184:in  
`loop' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout’  
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:98:in  
`connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:123:in  
`retrieve_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/query\_cache.rb:9:in  
`cache' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:28:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:361:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/params_parser.rb:15:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/session/cookie\_store.rb:93:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/failsafe.rb:26:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchronize’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:114:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/reloader.rb:34:in  
`run' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:108:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in  
`each' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/log\_tailer.rb:17:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in  
`service' C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service’  
C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' C:/Ruby/lib/ruby/1.8/webrick/server.rb:173:in `start\_thread’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start\_thread’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:95:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `each’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:23:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:82:in `start' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:14:in `run’  
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/server.rb:111  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
C:/Projects/my\_app/script/server.rb:3  
/!\ FAILSAFE /!\ Wed Nov 11 21:54:43 -0500 2009  
Status: 500 Internal Server Error  
no such file to load – mysql  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:156:in  
`require' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:521:in `new\_constants\_in’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:156:in  
`require' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/requires.rb:7:in `require\_library\_or\_gem’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/core\_ext/kernel/reporting.rb:11:in  
`silence_warnings' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/requires.rb:5:in `require\_library\_or\_gem’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/mysql\_adapter.rb:60:in  
`mysql_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `send’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:223:in  
`new_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:245:in `checkout\_new\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:188:in  
`checkout' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `loop’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:184:in  
`checkout' C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:183:in  
`checkout' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:98:in `connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:326:in  
`retrieve_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_specification.rb:123:in `retrieve\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:115:in  
`connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:9:in `cache’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/query\_cache.rb:28:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/params\_parser.rb:15:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/session/cookie_store.rb:93:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/failsafe.rb:26:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in  
`synchronize' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/dispatcher.rb:114:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/reloader.rb:34:in `run’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/dispatcher.rb:108:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `each’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/log_tailer.rb:17:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content\_length.rb:13:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in `service’  
C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' C:/Ruby/lib/ruby/1.8/webrick/server.rb:95:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `each' C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:23:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:82:in `start’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:14:in  
`run' C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/server.rb:111 C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`require' C:/Projects/my_app/script/server.rb:3 /!\ FAILSAFE /!\ Wed Nov 11 22:00:30 -0500 2009 Status: 500 Internal Server Error no such file to load -- mysql C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`require' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/dependencies.rb:521:in  
`new_constants_in' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/dependencies.rb:156:in `require’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/core\_ext/kernel/requires.rb:7:in  
`require_library_or_gem' C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence\_warnings’  
C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.4/lib/active\_support/core\_ext/kernel/requires.rb:5:in  
`require_library_or_gem' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/mysql_adapter.rb:60:in `mysql\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:223:in  
`send' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:223:in `new\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:245:in  
`checkout_new_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:188:in `checkout’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:184:in  
`loop' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:184:in `checkout’  
C:/Ruby/lib/ruby/1.8/monitor.rb:242:in `synchronize' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:183:in `checkout’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:98:in  
`connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:326:in `retrieve\_connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:123:in  
`retrieve_connection' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/connection_adapters/abstract/connection_specification.rb:115:in `connection’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/query\_cache.rb:9:in  
`cache' C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active_record/query_cache.rb:28:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.4/lib/active\_record/connection\_adapters/abstract/connection\_pool.rb:361:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/params_parser.rb:15:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/session/cookie\_store.rb:93:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/failsafe.rb:26:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in `synchronize’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:114:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action\_controller/reloader.rb:34:in  
`run' C:/Ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.4/lib/action_controller/dispatcher.rb:108:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/static.rb:31:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:46:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in  
`each' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/urlmap.rb:40:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/rails/rack/log\_tailer.rb:17:in  
`call' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/content_length.rb:13:in `call’  
C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:50:in  
`service' C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:104:in `service’  
C:/Ruby/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' C:/Ruby/lib/ruby/1.8/webrick/server.rb:173:in `start\_thread’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:162:in `start\_thread’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:95:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `each’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:92:in `start' C:/Ruby/lib/ruby/1.8/webrick/server.rb:23:in `start’  
C:/Ruby/lib/ruby/1.8/webrick/server.rb:82:in `start' C:/Ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/handler/webrick.rb:14:in `run’  
C:/Ruby/lib/ruby/gems/1.8/gems/rails-2.3.4/lib/commands/server.rb:111  
C:/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' C:/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
C:/Projects/my\_app/script/server.rb:3

I’m really hoping someone can help me. I’m trying to work through these  
tutorials but am stuck because of something I (obviously) don’t  
understand.

Thanks in advance for your help and time.

Randall

---

<div class="post-metadata">

**Author:** ![rswaving](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/77aa72/32.png) [@rswaving](https://www.ruby-forum.com/u/rswaving)\
**Post date:** [November 12, 2009, 5:13am UTC](https://www.ruby-forum.com/t/installation-issue/178843/2 "2009-11-12T05:13:42Z")

</div>

Disregard. MySQL 5.1 is not compatible.

See this blog post on instructions for setting up RoR on Win7

[http://blog.mmediasys.com/2009/07/06/getting-started-with-rails-and-mysql/](http://blog.mmediasys.com/2009/07/06/getting-started-with-rails-and-mysql/)

---

<div class="post-metadata">

**Author:** ![rswaving](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/77aa72/32.png) [@rswaving](https://www.ruby-forum.com/u/rswaving)\
**Post date:** [November 12, 2009, 5:17am UTC](https://www.ruby-forum.com/t/installation-issue/178843/3 "2009-11-12T05:17:29Z")

</div>

Hi

First you have to install the mysql adapter gem issue at console

sudo gem install mysql

And also you have to specify database connection settings in  
config/database.yml

Sijo