# ROR Ubuntu 8.10: Action Controller: Exception caught

**URL:** <https://www.ruby-forum.com/t/ror-ubuntu-8-10-action-controller-exception-caught/152350>\
**Category:** Rails\
**Created:** [November 3, 2008, 12:52am UTC](https://www.ruby-forum.com/t/ror-ubuntu-8-10-action-controller-exception-caught/152350 "2008-11-03T00:52:34Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![scudco](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/aca169/32.png) [@scudco](https://www.ruby-forum.com/u/scudco)\
**Post date:** [November 3, 2008, 12:52am UTC](https://www.ruby-forum.com/t/ror-ubuntu-8-10-action-controller-exception-caught/152350/1 "2008-11-03T00:52:34Z")

</div>

System:  
Virtual Box running Ubuntu 8.10 as guest  
Fellowed ( [http://wiki.rubyonrails.org/rails/pages/RailsOnUbuntu](http://wiki.rubyonrails.org/rails/pages/RailsOnUbuntu) ) to  
instal RoR

Book: Agile Web D. with Rails: Second Edition

Issue:  
(pleas help)  
I’m creating a simple hello world application as defined on pages 36-40.  
Generating controller called ‘Say’.

How to I fix issue below?

it returns this error rather then what is supposed to happen according  
to the book:

MissingSourceFile in SayController#hello

no such file to load – sqlite3

RAILS\_ROOT: /home/adam/R0R/demo  
Application Trace | Framework Trace | Full Trace

/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:355:in `new\_constants\_in’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/core_ext/kernel/requires.rb:7:in `require\_library\_or\_gem’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/core\_ext/kernel/reporting.rb:11:in  
`silence_warnings' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/core_ext/kernel/requires.rb:5:in `require\_library\_or\_gem’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/connection\_adapters/sqlite3\_adapter.rb:10:in  
`sqlite3_connection' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:292:in `send’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:292:in  
`connection=' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:260:in `retrieve\_connection’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:78:in  
`connection' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/query_cache.rb:8:in `cache’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/caching/sql\_cache.rb:12:in  
`perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:529:in `send’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/base.rb:529:in  
`process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:568:in `process\_without\_session\_management\_support’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/session\_management.rb:130:in  
`process' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:389:in `process’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/dispatcher.rb:149:in  
`handle_request' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:107:in `dispatch’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/dispatcher.rb:104:in  
`synchronize' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:104:in `dispatch’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/dispatcher.rb:120:in  
`dispatch_cgi' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:35:in `dispatch’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:76:in  
`process' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in `synchronize’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in  
`process' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process\_client’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process\_client’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in  
`initialize' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in  
`each' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel\_rails:128:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel\_rails:281  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:503:in  
`load' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:503:in `load’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:355:in  
`new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:503:in `load’  
/usr/lib/ruby/gems/1.8/gems/rails-2.1.2/lib/commands/servers/mongrel.rb:64  
/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:355:in `new\_constants\_in’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/rails-2.1.2/lib/commands/server.rb:39 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:31:in `require’  
script/server:3

/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:355:in `new\_constants\_in’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/core_ext/kernel/requires.rb:7:in `require\_library\_or\_gem’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/core\_ext/kernel/reporting.rb:11:in  
`silence_warnings' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/core_ext/kernel/requires.rb:5:in `require\_library\_or\_gem’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/connection\_adapters/sqlite3\_adapter.rb:10:in  
`sqlite3_connection' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:292:in `send’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:292:in  
`connection=' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/connection_adapters/abstract/connection_specification.rb:260:in `retrieve\_connection’  
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active\_record/connection\_adapters/abstract/connection\_specification.rb:78:in  
`connection' /usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/query_cache.rb:8:in `cache’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/caching/sql\_cache.rb:12:in  
`perform_action' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:529:in `send’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/base.rb:529:in  
`process_without_filters' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:568:in `process\_without\_session\_management\_support’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/session\_management.rb:130:in  
`process' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:389:in `process’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/dispatcher.rb:149:in  
`handle_request' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:107:in `dispatch’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/dispatcher.rb:104:in  
`synchronize' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:104:in `dispatch’  
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action\_controller/dispatcher.rb:120:in  
`dispatch_cgi' /usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:35:in `dispatch’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:76:in  
`process' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in `synchronize’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/rails.rb:74:in  
`process' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process\_client’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process\_client’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in  
`initialize' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:282:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in  
`each' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/configurator.rb:281:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel\_rails:128:in `run' /usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/lib/mongrel/command.rb:212:in `run’  
/usr/lib/ruby/gems/1.8/gems/mongrel-1.1.5/bin/mongrel\_rails:281  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:503:in  
`load' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:503:in `load’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:355:in  
`new_constants_in' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:503:in `load’  
/usr/lib/ruby/gems/1.8/gems/rails-2.1.2/lib/commands/servers/mongrel.rb:64  
/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:31:in  
`gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `require’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active_support/dependencies.rb:355:in `new\_constants\_in’  
/usr/lib/ruby/gems/1.8/gems/activesupport-2.1.2/lib/active\_support/dependencies.rb:510:in  
`require' /usr/lib/ruby/gems/1.8/gems/rails-2.1.2/lib/commands/server.rb:39 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem\_original\_require’  
/usr/local/lib/site\_ruby/1.8/rubygems/custom\_require.rb:31:in `require’  
script/server:3

This error occurred while loading the following files:  
sqlite3

Request

Parameters:

None

Show session dump

* * *

flash: !map:ActionController::Flash::FlashHash {}

Response

Headers:

{“cookie”=\>[],  
“Cache-Control”=\>“no-cache”}

---

<div class="post-metadata">

**Author:** ![scudco](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/aca169/32.png) [@scudco](https://www.ruby-forum.com/u/scudco)\
**Post date:** [November 3, 2008, 4:26am UTC](https://www.ruby-forum.com/t/ror-ubuntu-8-10-action-controller-exception-caught/152350/2 "2008-11-03T04:26:08Z")

</div>

try in gnome-terminal

> sudo gem install sqlite3

or

check in synaptic package manager for sqlite3 with ruby then install  
corresponding packages.