Question

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

Answer 1

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.