Neoid error when starting Rails server - ruby

Question

Having looked into it, and as a relative newbie to graph databases, I've decided that Neoid may be the best way to benefit from Neo4j at this stage. I've come across a problem straight after installing it, on starting up the server. I've installed the gem, added the 01_neo4j.rb file as stated on the github page, added the relevant columns to the models and get the following error:
=> Booting WEBrick
=> Rails 4.0.2 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/open-uri.rb:35:in `initialize': No such file or directory - /dev/null (Errno::ENOENT)
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/open-uri.rb:35:in `open'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/open-uri.rb:35:in `open'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:599:in `create_logfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:594:in `open_logfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:549:in `initialize'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:314:in `new'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:314:in `initialize'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid.rb:73:in `new'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid.rb:73:in `logger'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid.rb:52:in `initialize_all'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid/railtie.rb:7:in `block (2 levels) in <class:Railtie>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:36:in `call'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:44:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/application/finisher.rb:62:in `block in <module:Finisher>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/initializable.rb:30:in `instance_exec'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/initializable.rb:55:in `block in run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:150:in `block in tsort_each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:183:in `block (2 levels) in each_strongly_connected_component'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:219:in `each_strongly_connected_component_from'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:182:in `block in each_strongly_connected_component'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:180:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:180:in `each_strongly_connected_component'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:148:in `tsort_each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/initializable.rb:54:in `run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/application.rb:215:in `initialize!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/railtie/configurable.rb:30:in `method_missing'
from C:/Sites/Knock4/config/environment.rb:5:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `block in require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:214:in `load_dependency'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from C:/Sites/Knock4/config.ru:3:in `block in <main>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:55:in `instance_eval'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:55:in `initialize'
from C:/Sites/Knock4/config.ru:in `new'
from C:/Sites/Knock4/config.ru:in `<main>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:49:in `eval'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:49:in `new_from_string'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:40:in `parse_file'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/server.rb:277:in `build_app_and_options_from_config'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/server.rb:199:in `app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands/server.rb:48:in `app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/server.rb:314:in `wrapped_app'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands/server.rb:75:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands.rb:76:in `block in <top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands.rb:71:in `tap'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands.rb:71:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
If anyone has any idea what the problem might be here, I would appreciate it. I'm using Rails 4.0.2 (as you can probably see), so not sure if this is an issue.
The error reference shows the following code:
def open(name, *rest, &block) # :doc:
if name.respond_to?(:open)
name.open(*rest, &block)
elsif name.respond_to?(:to_str) &&
%r{\A[A-Za-z][A-Za-z0-9+\-\.]*://} =~ name &&
(uri = URI.parse(name)).respond_to?(:open)
uri.open(*rest, &block)
else
open_uri_original_open(name, *rest, &block)
end
end
With
open_uri_original_open(name, *rest, &block)
being line 35. I have no idea what this means though!

Answer 1

This is caused, on windows, by neoid 0.1.2 which assumes you are on unix and so the standard logger redirects to dev/null. So you must define
ENV['NEOID_LOG'] ||= 'true'
ENV['NEOID_LOG_FILE'] ||= 'log/neoid.log'
and the log will be in the log folders.