I'm really new to Ruby and its Rails framework and I was following a tutorial when I ran into some issues using the rails generate command. I tried using rails generate scaffold and rails generate controller but it didn't work. The full trace is this:
/usr/lib/ruby/vendor_ruby/rails/railtie/configuration.rb:95:in `method_missing': undefined method `load_defaults' for #<Rails::Application::Configuration:0x000055cdba53c180> (NoMethodError)
from /home/eric/Projects/blog/config/application.rb:12:in `<class:Application>'
from /home/eric/Projects/blog/config/application.rb:10:in `<module:Blog>'
from /home/eric/Projects/blog/config/application.rb:9:in `<top (required)>'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:92:in `require'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:92:in `preload'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:153:in `serve'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:141:in `block in run'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:135:in `loop'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application.rb:135:in `run'
from /var/lib/gems/2.5.0/gems/spring-2.0.2/lib/spring/application/boot.rb:19:in `<top (required)>'
from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from -e:1:in `<main>'
I think that the main issue is that I'm missing the 'load_defaults' method, but I couldn't find anything on how to resolve the issue. For context, I'm doing this all on a completely new rails project on Ubuntu - the only things I've done so far are rails new and bundle install.
Somewhat curiously, this issue is only popping up on new rails projects that I've created. I tried using rails generate commands on a project I had earlier and it worked. I couldn't figure out what was different between the projects though.
Any suggestions would be greatly appreciated!
I'm using Rails 4.0.0, and successfully installed the mysql2 gem yesterday (mysql-0.3.15) using mysql-connector-c-6.1.3.winx64. I created a new Rails project called "simple_cms" using rails new simple_cms -d mysql which worked, and then ran bundle install which was also fine.
When I try to run rails server I get the following errors:
C:\Users\Hans>cd sites
C:\Users\Hans\Sites>cd simple_cms
C:\Users\Hans\Sites\simple_cms>rails server
C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.15/lib/mysql2.rb:8:in
`requir e': 126: The specified module could not be found. -
C:/Ruby200-x64/lib/ruby/ge
ms/2.0.0/extensions/x64-mingw32/2.0.0/mysql2-0.3.15/mysql2/mysql2.so
(LoadError)
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/mysql2-0.3.15/lib/mysql2.rb :8:in `<top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler/runtime.rb:76:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler/runtime.rb:72:in `each'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler/runtime.rb:72:in `block in require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler/runtime.rb:61:in `each'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler/runtime.rb:61:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/bundler-1.6.0.rc2/lib/bundler.rb:132:in `require'
from C:/Users/Hans/Sites/simple_cms/config/application.rb:7:in `<top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
from C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
C:\Users\Hans\Sites\simple_cms>
What can I do about this? By the way, the module it cannot find is in fact there.
28-Mar-2014 After all the problems I had installing and re-installing, I still could not get rails server to run. As I mainly want this installation to learn Ruby on Rails, I have instead installed the Bitnami Ruby stack, which installs everything automatically. This seems to work fine, and I've got Ruby, MySQL and the Apache Web Server working.
I had similar problems configuring the Lynda course on learning Ruby on Rails. I found an additional step that seemed to work for me. Since the error was complaining about the lack of a database in mysql, I created the missing database and that fixed the problem.
Log into mysql as root and prompt for password:
mysql -u root -p
Then:
SHOW DATABASES;
CREATE DATABASE simple_cms_development;
exit;
I know this question has been asked in one form or the another before, but I still can't get a working solution for this.
I'm taking the saas course offered online and the code is directly cloned from
https://github.com/saasbook/hw3_rottenpotatoes
When I run cucumber from the command prompt
Using the default profile...
You have already activated activesupport 3.2.1, but your Gemfile requires activesupport 3.1.0. Using bundle exec may solve this. (Gem::LoadError)
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler/runtime.rb:31:in `block in setup'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler/runtime.rb:17:in `setup'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler.rb:110:in `setup'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler/setup.rb:7:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `rescue in require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/config/boot.rb:6:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/config/application.rb:1:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/config/environment.rb:2:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-rails-1.3.0/lib/cucumber/rails.rb:7:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `rescue in require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/features/support/env.rb:7:in `<top (required)>'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/rb_support/rb_language.rb:129:in `load'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/rb_support/rb_language.rb:129:in `load_code_file'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:171:in `load_file'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:83:in `block in load_files!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:82:in `each'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:82:in `load_files!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime.rb:175:in `load_step_definitions'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime.rb:40:in `run!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/cli/main.rb:43:in `execute!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/cli/main.rb:20:in `execute'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/bin/cucumber:14:in `<top (required)>'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/bin/cucumber:19:in `load'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/bin/cucumber:19:in `<main>'
after running bundle install version I get an even uglier message
Could not find rack-cache (~> 1.1) amongst [actionmailer-3.1.0, actionpack-3.1.0, activemodel-3.1.0, activerecord-3.1.0, activeresource-3.1.0, activesupport-3.1.0, addressable-2.2.7, archive-tar-minitar-0.5.2, arel-2.2.1, bcrypt-ruby-3.0.1, builder-3.0.0, capybara-1.1.2, childprocess-0.3.1, coffee-rails-3.1.1, coffee-script-2.2.0, coffee-script-source-1.2.0, columnize-0.3.6, cucumber-1.1.8, cucumber-rails-1.3.0, cucumber-rails-training-wheels-1.0.0, database_cleaner-0.7.1, diff-lcs-1.1.3, erubis-2.7.0, execjs-1.3.0, ffi-1.0.11, gherkin-2.8.0, haml-3.1.4, hike-1.2.1, i18n-0.6.0, jquery-rails-1.0.19, json-1.6.5, json_pure-1.6.5, launchy-2.0.5, libv8-3.3.10.4-x86_64-darwin-10, linecache19-0.5.12, mail-2.3.0, mime-types-1.17.2, multi_json-1.1.0, nokogiri-1.5.0, polyglot-0.3.3, rack-1.3.6, rack-cache-1.0.3, rack-mount-0.8.3, rack-ssl-1.3.2, rack-test-0.6.1, rails-3.1.0, railties-3.1.0, rake-0.9.2.2, rdoc-3.12, ruby-debug-base19-0.11.25, ruby-debug19-0.11.6, ruby_core_source-0.1.5, rubyzip-0.9.6.1, sass-3.1.15, sass-rails-3.1.5, selenium-webdriver-2.13.0, sprockets-2.0.3, sqlite3-1.3.5, term-ansicolor-1.0.7, therubyracer-0.9.10, thor-0.14.6, tilt-1.3.3, treetop-1.4.10, tzinfo-0.3.31, uglifier-1.2.3, xpath-0.1.4] (Gem::LoadError)
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:451:in `block in find_in_unresolved'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:451:in `map'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:451:in `find_in_unresolved'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:43:in `require'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler/dsl.rb:1:in `<top (required)>'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler/definition.rb:17:in `build'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler.rb:138:in `definition'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler.rb:126:in `load'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler.rb:110:in `setup'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/bundler-1.0.21/lib/bundler/setup.rb:7:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `rescue in require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/config/boot.rb:6:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/config/application.rb:1:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/config/environment.rb:2:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-rails-1.3.0/lib/cucumber/rails.rb:7:in `<top (required)>'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:59:in `rescue in require'
/Users/chemin/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in `require'
/Users/chemin/rails_projects/saas/hw3_rottenpotatoes/features/support/env.rb:7:in `<top (required)>'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/rb_support/rb_language.rb:129:in `load'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/rb_support/rb_language.rb:129:in `load_code_file'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:171:in `load_file'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:83:in `block in load_files!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:82:in `each'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime/support_code.rb:82:in `load_files!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime.rb:175:in `load_step_definitions'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/runtime.rb:40:in `run!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/cli/main.rb:43:in `execute!'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/lib/cucumber/cli/main.rb:20:in `execute'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/gems/cucumber-1.1.9/bin/cucumber:14:in `<top (required)>'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/bin/cucumber:19:in `load'
/Users/chemin/.rvm/gems/ruby-1.9.2-p290#rails3tutorial/bin/cucumber:19:in `<main>'
There's a couple solutions, the easiest of which would be to try running bundle exec cucumber first, and see if that solves your problem.
If that doesn't work, delete your rails3tutorial gemset and re-create it again:
rvm gemset delete rails3tutorial
rvm 1.9.2-p290#rails3tutorial --create
Then run bundle, and hopefully it will install your gems for you. Follow this up with bundle exec cucumber (I almost always run my specs and cukes using bundle exec so that it doesn't try accidentally loading stale gems).
Hopefully this works!
UPDATE: Explaining bundle exec a little more
bundle exec is a command that bundler comes with that will run any other command in the context of your Gemfile. In this case, you're essentially telling it to run the cucumber command but only with the gems from your Gemfile, and not with all the gems currently available.
For instance, if you have previously installed activesupport 3.2.1, and your Gemfile asks for activesupport 3.1.0. When this happens I believe the cucumber command itself pulls in 'activesupport' (maybe via the require 'cucumber/rails' call in env.rb) which grabs any random version of activesupport it can (let's say it grabs 3.2.1) from your available gems. After this, it decides to load up your rails environment to start running your features. When it starts loading your actual app, the code looks at your Gemfile.lock and sees that what you actually want is activesupport 3.1.0, but it can't load an old version on top of a new version, so it crashes with the error James Lin pasted.
This is why, if you're using rvm, it's a good idea to keep separate gemsets for your separate projects, and delete/re-create the gemsets if you're updating your gems on that project so you don't keep old versions of gems around. Alternatively, bundle exec tends to solve 99% of the problems as well. If you aren't using rvm, and have multiple projects, then you probably have many different versions of many different gems, and you should always use bundle exec to do things like execute rake tasks, run cucumer features and other unit tests, etc.
Or you could do bundle update to make sure all your gem plugins are the newest version and it will update your Gemfile.lock, so those two will be consistent.
I guess the difference between bundle exec and bundle update is whether you want bundle provide the version your app asking for or update your app gemfile so that the app wouldn't insist a stale version of gem when newer version installed and cause problem because the gem file.
Because when a version conflict happens, it is generally a good idea to make sure what installed in you system environment consistent with your app Gemfile or lock file as you don't want them trying to use an old version of gem when newer version available, unless you want freeze your gem system using rvm or similar at app level, but again, when you distribute you ruby app, it may cause problem in other machines.
In the end, because the need to distribute your app, unless newer version of gem file doesn't working with existing app, I think it shouldn't insist on an stale known-working version, unless you always want keep it on the safe side which is a valid argument.
Hey guys,
I clone a repo in Github: https://github.com/huacnlee/homeland/tree/
when I run the server, I got this error:
Agro:homeland Zhulin$ rails s
DEPRECATION WARNING: railtie_name is deprecated and has no effect. (called from <top (required)> at /Users/Zhulin/Desktop/RailsApps/homeland/config/application.rb:9)
/usr/local/lib/ruby/1.9.1/syck.rb:145:in `initialize': No such file or directory - /Users/Zhulin/Desktop/RailsApps/homeland/config/config.yml (Errno::ENOENT)
from /usr/local/lib/ruby/1.9.1/syck.rb:145:in `open'
from /usr/local/lib/ruby/1.9.1/syck.rb:145:in `load_file'
from /Users/Zhulin/Desktop/RailsApps/homeland/config/application.rb:48:in `<top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:28:in `require'
from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:28:in `block in <top (required)>'
from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:27:in `tap'
from /usr/local/lib/ruby/gems/1.9.1/gems/railties-3.0.0/lib/rails/commands.rb:27:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
What should I do? And BTW where can I find simpler Rails code for learning Ruby and Rails,
Thanks
You need to set up a config.yml file in the config folder. It looks like the repo includes a config.yml.default file that you can use as a template.
It looks like you're missing your database configuration file config/database.yml for some reason. These are generated automatically by rails new <appname> so it is easy to get a replacement.
As for examples, a good reference book is always best. I like the Agile Web Development with Rails book, but there are many others.
I just started learning ruby on rails with "Lynda Ruby on Rails 3 Essential Training".
I finished the installation, and created rails application by writing- "rails new app".
After that when I wrote - "rails server", that's what I saw:
C:\Users\Oded\sites\simple_cms>rails server
C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2/mysql2.r
b:2:in `require': 193: %1 is not a valid Win32 application. - C:/Ruby192/lib/r
uby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/mysql2/1.9/mysql2.so (LoadError
)
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/my
sql2/mysql2.rb:2:in `<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/my
sql2.rb:7:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/mysql2-0.2.6-x86-mingw32/lib/my
sql2.rb:7:in `<top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runti
me.rb:64:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runti
me.rb:64:in `block (2 levels) in require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runti
me.rb:62:in `each'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runti
me.rb:62:in `block in require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runti
me.rb:51:in `each'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler/runti
me.rb:51:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/bundler-1.0.7/lib/bundler.rb:11
2:in `require'
from C:/Users/Oded/sites/simple_cms/config/application.rb:7:in `<top (re
quired)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/comman
ds.rb:28:in `require'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/comman
ds.rb:28:in `block in <top (required)>'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/comman
ds.rb:27:in `tap'
from C:/Ruby192/lib/ruby/gems/1.9.1/gems/railties-3.0.3/lib/rails/comman
ds.rb:27:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
Can you please help me find the solution?
Happy holidays,
Oded
Looks like you're missing some gems! try running bundle install... then all should work.
EDIT: make sure that your Gemfile contains the line
gem 'mysql'
before running bundle install. Bundler will get you set up for mysql, dependencies and all.
You have to go to this website and follow the directions ...
http://blog.mmediasys.com/2011/07/07/installing-mysql-on-windows-7-x64-and-using-ruby-with-it/
or in short download the connector mentioned in the article from mysql or a mirror site
Run this command:
gem install mysql --platform=ruby -- --with-mysql-dir=C:/mysql-connector-c-noinstall-6.0.2-win32
Make sure you have the correct path to the mysql connector folder that has no spaces!!
After that is complete make sure you copy the libmysql.dll file from the connector library you unzipped and downloaded and placed that in the Ruby\bin file.
After that delete the connector libary and start it up by typing 'rails server' making sure your gem file has the line gem 'mysql' or gem 'mysql2' I'm not sure which one so try both. It sucks and they really need to fix this for windows.