Question

http://localhost:3000/genre

I’m using Instant Rails, I’m introducing scaffolding for the first time ever.

So everything looks like its working fine, I did my own RoR page etc, today i come in today and when I go to localhost:3000 I get the following error message:

Oops! Google Chrome could not connect to localhost:3000

Any suggestions of what I should check would be greatly appreciated. So far I know to confirm that:

1. the windows host file connects 127.0.0.1 to localhost

I’ve had an update to this the Mongrel server doesnt start properly with the new app I have created, rather than an open window, it just runs a script and closes the window without confirmation that it has started.

Thanks in advance.

here is the details of the Mongrel error:

C:\Users\Will\Desktop\instantrails\rails_apps\talewiki>mongrel_rails start -p 30
00
** Starting Mongrel listening at 0.0.0.0:3000
** Starting Rails with development environment…
C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/activerecord-2.0.
2/lib/active_record/connection_adapters/abstract/connection_specification.rb:217
:in establish_connection': development database is not configured (ActiveRecord
::AdapterNotSpecified)
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/acti
verecord-2.0.2/lib/active_record/connection_adapters/abstract/connection_specifi
cation.rb:208:inestablish_connection’
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail
s-2.0.2/lib/initializer.rb:234:in initialize_database'
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail
s-2.0.2/lib/initializer.rb:94:inprocess’
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail
s-2.0.2/lib/initializer.rb:49:in send'
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/rail
s-2.0.2/lib/initializer.rb:49:inrun’
from C:/Users/Will/Desktop/instantrails/rails_apps/talewiki/config/envir
onment.rb:13
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/site_ruby/1.8/ruby
gems/custom_require.rb:27:in gem_original_require'
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/site_ruby/1.8/ruby
gems/custom_require.rb:27:inrequire’
… 9 levels…
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/mong
rel-1.1.2-x86-mswin32/bin/../lib/mongrel/command.rb:212:in run'
from C:/Users/Will/Desktop/instantrails/ruby/lib/ruby/gems/1.8/gems/mong
rel-1.1.2-x86-mswin32/bin/mongrel_rails:281
from C:/Users/Will/Desktop/instantrails/ruby/bin/mongrel_rails:19:inlo
ad’
from C:/Users/Will/Desktop/instantrails/ruby/bin/mongrel_rails:19

Answer 1

As it appears your Database has not been configured. Check out the APP_ROOT/config/database.yml file and find if you have created the database that corresponds to the development environment. Once you setup the DB, your code should run fine.