Forum: Ruby on Rails Seeking help with basic installation

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Sugi V. (Guest)
on 2009-04-06 11:42
(Received via mailing list)
Hi all,

             Please help me.In my first attempt to creat a simple
controller and working with hello world program.I got some error
though I have my action and view correctly.......

In general..When I type http://localhost:3000/ I can get the welcome
page.But when I see the "About your application Envinorment"..I get
some error as following..

 MissingSourceFile in Rails/infoController#properties

no such file to load -- sqlite3

RAILS_ROOT: /home/sugi/hello_world
Application Trace | Framework Trace | Full Trace

/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:354:in
`new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/activesupport/lib/active_support/core_ext/kernel/
requires.rb:7:in `require_library_or_gem'
vendor/rails/activesupport/lib/active_support/core_ext/kernel/
reporting.rb:11:in `silence_warnings'
vendor/rails/activesupport/lib/active_support/core_ext/kernel/
requires.rb:5:in `require_library_or_gem'
vendor/rails/activerecord/lib/active_record/connection_adapters/
sqlite3_adapter.rb:10:in `sqlite3_connection'
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:292:in `send'
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:292:in `connection='
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:260:in `retrieve_connection'
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:78:in `connection'
vendor/rails/activerecord/lib/active_record/query_cache.rb:8:in
`cache'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:
12:in `perform_action'
vendor/rails/actionpack/lib/action_controller/base.rb:529:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:529:in
`process_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:569:in
`process_without_session_management_support'
vendor/rails/actionpack/lib/action_controller/session_management.rb:
130:in `process'
vendor/rails/actionpack/lib/action_controller/base.rb:389:in `process'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:149:in
`handle_request'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:107:in
`dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in
`synchronize'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in
`dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:120:in
`dispatch_cgi'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:35:in
`dispatch'
vendor/rails/railties/lib/webrick_server.rb:112:in `handle_dispatch'
vendor/rails/railties/lib/webrick_server.rb:78: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'
vendor/rails/railties/lib/webrick_server.rb:62:in `dispatch'
vendor/rails/railties/lib/commands/servers/webrick.rb:66
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:354:in
`new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/railties/lib/commands/server.rb:39
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
script/server:3

/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:354:in
`new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/activesupport/lib/active_support/core_ext/kernel/
requires.rb:7:in `require_library_or_gem'
vendor/rails/activesupport/lib/active_support/core_ext/kernel/
reporting.rb:11:in `silence_warnings'
vendor/rails/activesupport/lib/active_support/core_ext/kernel/
requires.rb:5:in `require_library_or_gem'
vendor/rails/activerecord/lib/active_record/connection_adapters/
sqlite3_adapter.rb:10:in `sqlite3_connection'
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:292:in `send'
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:292:in `connection='
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:260:in `retrieve_connection'
vendor/rails/activerecord/lib/active_record/connection_adapters/
abstract/connection_specification.rb:78:in `connection'
vendor/rails/activerecord/lib/active_record/query_cache.rb:8:in
`cache'
vendor/rails/actionpack/lib/action_controller/caching/sql_cache.rb:
12:in `perform_action'
vendor/rails/actionpack/lib/action_controller/base.rb:529:in `send'
vendor/rails/actionpack/lib/action_controller/base.rb:529:in
`process_without_filters'
vendor/rails/actionpack/lib/action_controller/filters.rb:569:in
`process_without_session_management_support'
vendor/rails/actionpack/lib/action_controller/session_management.rb:
130:in `process'
vendor/rails/actionpack/lib/action_controller/base.rb:389:in `process'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:149:in
`handle_request'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:107:in
`dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in
`synchronize'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:104:in
`dispatch'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:120:in
`dispatch_cgi'
vendor/rails/actionpack/lib/action_controller/dispatcher.rb:35:in
`dispatch'
vendor/rails/railties/lib/webrick_server.rb:112:in `handle_dispatch'
vendor/rails/railties/lib/webrick_server.rb:78: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'
vendor/rails/railties/lib/webrick_server.rb:62:in `dispatch'
vendor/rails/railties/lib/commands/servers/webrick.rb:66
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in `require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/activesupport/lib/active_support/dependencies.rb:354:in
`new_constants_in'
vendor/rails/activesupport/lib/active_support/dependencies.rb:509:in
`require'
vendor/rails/railties/lib/commands/server.rb:39
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27:in
`gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:27: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"}


When I run my helloworld,I get the same errror.I am just a
newbie.Please help me..

Thanks,
Regards,
Sugi.
Frederick C. (Guest)
on 2009-04-06 12:03
(Received via mailing list)
On Apr 6, 6:08 am, Sugi <removed_email_address@domain.invalid> wrote:
>  MissingSourceFile in Rails/infoController#properties
>
> no such file to load -- sqlite3

This means you haven't got the sqlite3-ruby gem installed.

Fred
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