Webrick Rails server won't start? - ruby-on-rails

Question

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.

Answer 1

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;