Problem with First Try at Ruby On Rails

Hi There,
I am a complete newbie - just doing the training at Lynda.com. I’m
having a problem with one of the first exercises.

I’ve installed Ruby, Rails, Ruby Gems, etc. I’m using webrick as my
local webserver. I’m running an exercise where I have a controller
called say_controller with the following content:


class SayController < ApplicationController

def hello
end
end


I have a say folder in views and inside is a file called hello.rhtml
containing the following text:

Hello World!


In my browser I ttype: http://localhost:3000/say/hello

and I’m expecting to see a screen saying “Hello World”

But instead I’m getting an error message:


MissingSourceFile in SayController#hello

no such file to load – sqlite3

RAILS_ROOT: /Users/daniel/Sites/my_app
Application Trace | Framework Trace | Full Trace

/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:342:innew_constants_in’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/core_ext/kernel/requires.rb:7:inrequire_library_or_gem’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/core_ext/kernel/reporting.rb:11:in silence_warnings' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/core_ext/kernel/requires.rb:5:inrequire_library_or_gem’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/sqlite3_adapter.rb:10:in sqlite3_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:291:insend’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:291:in
connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:259:inretrieve_connection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:78:in
connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ query_cache.rb:8:incache’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:677:in perform_action' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:insend’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/filters.rb:685:inprocess_without_session_management_support’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in handle_request' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:115:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in dispatch_cgi' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:9:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
112:in handle_dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 78:inservice’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:inrun’
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:instart’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
62:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/ webrick.rb:66 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:ingem_original_require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:
39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
script/server:3

/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:342:innew_constants_in’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/core_ext/kernel/requires.rb:7:inrequire_library_or_gem’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/core_ext/kernel/reporting.rb:11:in silence_warnings' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/core_ext/kernel/requires.rb:5:inrequire_library_or_gem’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/sqlite3_adapter.rb:10:in sqlite3_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:291:insend’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:291:in
connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:259:inretrieve_connection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:78:in
connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ query_cache.rb:8:incache’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:677:in perform_action' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:insend’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/filters.rb:685:inprocess_without_session_management_support’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in handle_request' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:115:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in dispatch_cgi' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:9:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
112:in handle_dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 78:inservice’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:inrun’
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:instart’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
62:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/ webrick.rb:66 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:ingem_original_require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:
39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
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”}


Can anyone give me some clues what to do to solve?

Thanks … tc

You need to install the sqlite3 gem.

gem install sqlite3

A recent change to Rails changed the default from MySQL to sqlite. If
you don’t want to do use sqlite and want to use MySQL, then edit
config/database.yml in your Rails app to work with MySQL, or, even
easier, regenerate your Rails application like so:

rails your_application -d mysql

–Jeremy

On Feb 3, 2008 10:56 PM, taffyc [email protected] wrote:

class SayController < ApplicationController
Hello World!

require' active_support/core_ext/kernel/reporting.rb:11:insilence_warnings’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
action_controller/base.rb:524:in send' action_controller/dispatcher.rb:171:inhandle_request’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' 62:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
gem_original_require'require_library_or_gem’
connection_adapters/abstract/connection_specification.rb:291:in
action_controller/caching.rb:677:in perform_action' action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
/usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/


Can anyone give me some clues what to do to solve?

Thanks … tc


http://www.jeremymcanally.com/

My books:
Ruby in Practice

My free Ruby e-book
http://www.humblelittlerubybook.com/

My blogs:
http://www.mrneighborly.com/
http://www.rubyinpractice.com/

Dude what is the DataBase u using?
It seems u don have a database for this application.
In yr config folder of the application there is a file called
database.yml…
Try to create a database with the name as in the development mode…

From yr log it seems u using sqlite as yr database server…?
Is it so…?

Try this…

MissingSourceFile in SayController#hello

no such file to load – sqlite3

check out for your mysql db password and edit the same in database.yml
file.

On Feb 4, 2008 10:41 AM, taffyc [email protected] wrote:

#28000Access denied for user ‘root’@‘localhost’ (using password: NO)
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
action_controller/base.rb:524:in send' action_controller/dispatcher.rb:171:inhandle_request’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' 62:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
vendor/mysql.rb:523:in read' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:9:indispatch’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in each'require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in

having a problem with one of the first exercises.
end


MissingSourceFile in SayController#hello
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
connection_adapters/abstract/connection_specification.rb:291:in
/lib/active_record/

/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in dispatch' /usr/local/lib/ruby/1.8/webrick/server.rb:92:ineach’
require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in active_support/dependencies.rb:342:innew_constants_in’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2
/lib/active_record/

action_controller/caching.rb:677:in perform_action' action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:

read more »


Cheers,
Vaibhav
Helping Laymen become Technology Enthusiasts at
http://technofriends.wordpress.com

Jeremy,

Thanks. I regenerated the application as you suggested - makes
complete sense. Now I am still getting an error. (see below) looks
like it is still having problems accessing the database even though it
knows to look for mysql. Is it expecting a database password??

Mysql::Error in BayController#hello

#28000Access denied for user ‘root’@‘localhost’ (using password: NO)

RAILS_ROOT: /Users/daniel/Sites/my_appp
Application Trace | Framework Trace | Full Trace

/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
vendor/mysql.rb:523:in read' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ vendor/mysql.rb:153:inreal_connect’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:471:in connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:165:ininitialize’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:88:in new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:88:inmysql_connection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:291:in send' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:291:inconnection=’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:259:in
retrieve_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:78:inconnection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
query_cache.rb:8:in cache' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/caching.rb:677:inperform_action’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:inprocess_without_filters’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
process_without_session_management_support' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/session_management.rb:123:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:171:inhandle_request’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:126:indispatch_cgi’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 112:inhandle_dispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
78:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:inservice’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/local/lib/ruby/1.8/webrick/server.rb:173:instart_thread’
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:162:instart_thread’
/usr/local/lib/ruby/1.8/webrick/server.rb:95:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:92:ineach’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:23:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:82:in start' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 62:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/
webrick.rb:66
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:342:innew_constants_in’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb: 39 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:ingem_original_require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require’
script/server:3

/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
vendor/mysql.rb:523:in read' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ vendor/mysql.rb:153:inreal_connect’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:471:in connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:165:ininitialize’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:88:in new' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:88:inmysql_connection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:291:in send' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:291:inconnection=’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:259:in
retrieve_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:78:inconnection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
query_cache.rb:8:in cache' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/caching.rb:677:inperform_action’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in send' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:inprocess_without_filters’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/filters.rb:685:in
process_without_session_management_support' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/session_management.rb:123:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:388:in process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:171:inhandle_request’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:115:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:126:indispatch_cgi’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 112:inhandle_dispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
78:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:inservice’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/local/lib/ruby/1.8/webrick/server.rb:173:instart_thread’
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:162:instart_thread’
/usr/local/lib/ruby/1.8/webrick/server.rb:95:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:92:ineach’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:23:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:82:in start' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 62:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/
webrick.rb:66
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:342:innew_constants_in’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:496:in require' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb: 39 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:ingem_original_require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
`require’
script/server:3

Request

Parameters:

None

Show session dump


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

Response

Headers:

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

Hi vaibhav,
u need to cahnge the database.yml to the following:
development:
adapter: sqlite
database: test_development
username: root
password: root
host: localhost

And dont forget to install the gems for sqlite and
mysql…!..otherwise this change will still hang u with the error

Vaibhav Pandey wrote:

check out for your mysql db password and edit the same in database.yml
file.

On Feb 4, 2008 10:41 AM, taffyc [email protected] wrote:

#28000Access denied for user ‘root’@‘localhost’ (using password: NO)
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
action_controller/base.rb:524:in send' action_controller/dispatcher.rb:171:inhandle_request’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' 62:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
vendor/mysql.rb:523:in read' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:9:indispatch’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in each'require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in

having a problem with one of the first exercises.
end


MissingSourceFile in SayController#hello
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
connection_adapters/abstract/connection_specification.rb:291:in
/lib/active_record/

/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:9:in dispatch' /usr/local/lib/ruby/1.8/webrick/server.rb:92:ineach’
require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in active_support/dependencies.rb:342:innew_constants_in’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2
/lib/active_record/

action_controller/caching.rb:677:in perform_action' action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:

read more »


Cheers,
Vaibhav
Helping Laymen become Technology Enthusiasts at
http://technofriends.wordpress.com

On 4 Feb 2008, at 20:14, taffyc wrote:

Thanks everyone,
I will get onto this later tonight. One thing I am REALLY confused
about though. In the exercise I am currently doing on Lynda.com we
have not setup a specific database yet for the exercise. This is
supposed to be an interaction between the browser, controller, and
view module only. The database comes later in the exercise. I don’t
understand why I am having a database interaction/problem when I’m not
supposed to be interacting with one yet??

Short version: because it’s trying to setup some databasey things for
you (to be quite precise it’s trying to setup the query cache, which
didn’t exist in older version of rails, which your tutorial was
probably written for)

Fred

Thanks everyone,
I will get onto this later tonight. One thing I am REALLY confused
about though. In the exercise I am currently doing on Lynda.com we
have not setup a specific database yet for the exercise. This is
supposed to be an interaction between the browser, controller, and
view module only. The database comes later in the exercise. I don’t
understand why I am having a database interaction/problem when I’m not
supposed to be interacting with one yet??

taffyc

On Feb 4, 4:01 am, Raghavendra Kamat <rails-mailing-l…@andreas-

Do a list of your installed gems:

gem list

Make sure mysql is among them. If not, then install the mysql gem doing:

sudo gem install mysql

Check to make sure mysql is running by typing:

mysql

Assuming it is running, type:

status

That should tell you the UNIX socket (normally /tmp/mysql.sock)

Copy that and in your database.yml add the line:

socket: /tmp/mysql.sock

Try again.

OK. I haven’t done anything with sqlite as I am telling rails to use
mysql. Apart from that I have done everything above but it still
doesn’t work. heres my current error message below. Any thoughts
before I go buy OS 10.5??

Mysql::Error in BayController#hello

Can’t connect to local MySQL server through socket ‘/tmp/
mysql.sock’ (2)

RAILS_ROOT: /Users/daniel/Sites/my_appp
Application Trace | Framework Trace | Full Trace

/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:471:in real_connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:471:inconnect’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:165:in initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:88:innew’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:88:in mysql_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:291:insend’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:291:in
connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:259:inretrieve_connection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:78:in
connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ query_cache.rb:8:incache’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:677:in perform_action' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:insend’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/filters.rb:685:inprocess_without_session_management_support’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in handle_request' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:115:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in dispatch_cgi' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:9:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
112:in handle_dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 78:inservice’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:inrun’
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:instart’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
62:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/ webrick.rb:66 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:ingem_original_require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:
39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
script/server:3

/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:471:in real_connect' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:471:inconnect’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:165:in initialize' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/mysql_adapter.rb:88:innew’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/mysql_adapter.rb:88:in mysql_connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:291:insend’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:291:in
connection=' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ connection_adapters/abstract/connection_specification.rb:259:inretrieve_connection’
/usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/
connection_adapters/abstract/connection_specification.rb:78:in
connection' /usr/local/lib/ruby/gems/1.8/gems/activerecord-2.0.2/lib/active_record/ query_cache.rb:8:incache’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/caching.rb:677:in perform_action' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:524:insend’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/base.rb:524:in process_without_filters' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/filters.rb:685:inprocess_without_session_management_support’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/session_management.rb:123:in process' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/base.rb:388:inprocess’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:171:in handle_request' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:115:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/
action_controller/dispatcher.rb:126:in dispatch_cgi' /usr/local/lib/ruby/gems/1.8/gems/actionpack-2.0.2/lib/ action_controller/dispatcher.rb:9:indispatch’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
112:in handle_dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb: 78:inservice’
/usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:inrun’
/usr/local/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:instart’
/usr/local/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:instart’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/webrick_server.rb:
62:in dispatch' /usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/servers/ webrick.rb:66 /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:ingem_original_require’
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
require' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/
active_support/dependencies.rb:342:in new_constants_in' /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/ active_support/dependencies.rb:496:inrequire’
/usr/local/lib/ruby/gems/1.8/gems/rails-2.0.2/lib/commands/server.rb:
39
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in
gem_original_require' /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:inrequire’
script/server:3

Request

Parameters:

None

Show session dump


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

Response

Headers:

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

On Feb 4, 3:52 pm, Frederick C. [email protected]

OK - thanks. Looks like Mysql had shut down. Here is the latest below
(Do I need to create the database my_appp_development ??):

Mysql::Error in BayController#hello

Unknown database ‘my_appp_development’

RAILS_ROOT: /Users/daniel/Sites/my_appp


OK - thanks. Looks like Mysql had shut down. Here is the latest below
(Do I need to create the database my_appp_development ??):

Mysql::Error in BayController#hello

Unknown database ‘my_appp_development’

RAILS_ROOT: /Users/daniel/Sites/my_appp


Lynda.com tutorials are a bit older. You are using Rails 2.0.2 and
there is a change in current version that you must setup a database
before developing your application.

Thank You a thousand times!!! It works.

On Feb 4, 2008, at 9:23 PM, taffyc wrote:

OK - thanks. Looks like Mysql had shut down. Here is the latest below
(Do I need to create the database my_appp_development ??):

Mysql::Error in BayController#hello

Unknown database ‘my_appp_development’

RAILS_ROOT: /Users/daniel/Sites/my_appp

Yup.

mysqladmin -uroot create my_appp_development
mysqladmin -uroot create my_appp_test

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