Error when I make a connection through sequel - mysql2 on AmazonWs

Question

My rb file is simple like this:

require 'rubygems'
require 'mysql2'
require 'sequel'

Sequel.connect(:adapter => 'mysql2', :database=>'xxx', :user => 'xxx', :password => 'xxxxxx', :host => 'xxxxxxxx.compute-1.amazonaws.com')

when I ran this file I got the following error:

> /usr/lib64/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
  `require': cannot load such file -- mysql2 (LoadError)    from
> /usr/lib64/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
  `require'     from t.rb:2:in `<main>'

I ran the command "bundle list" over my amazon instance and I got the following list:

Gems included by the bundle: * actionmailer (3.2.8) * actionpack (3.2.8) * activemodel (3.2.8) * activerecord (3.2.8) * activeresource (3.2.8) * activesupport (3.2.8) * arel (3.0.2) * builder (3.0.0) * bundler (1.0.21) * coffee-rails (3.2.2) * coffee-script (2.2.0) * coffee-script-source (1.3.3) * erubis (2.7.0) * execjs (1.4.0) * hike (1.2.1) * i18n (0.6.0) * journey (1.0.4) * jquery-rails (2.1.1) * json (1.7.5) * mail (2.4.4) * mime-types (1.19) * multi_json (1.3.6) * mysql2 (0.3.11) * polyglot (0.3.3) * rack (1.4.1) * rack-cache (1.2) * rack-ssl (1.3.2) * rack-test (0.6.1) * rails (3.2.8) * railties (3.2.8) * rake (0.9.2.2) * rdoc (3.12) * sass (3.2.1) * sass-rails (3.2.5) * sequel (3.38.0) * sprockets (2.1.3) * thor (0.16.0) * tilt (1.3.3) * treetop (1.4.10) * tzinfo (0.3.33)

So as we can see there is the mysql2 gem. Any advise?

Thanks all!

Answer 1

Ok! Solve it. In my local environment I edited by hand the Gemfile (maybe is not the right way) I added one line "gem mysql2" then in the console I execute "bundle install" and upload the Gemfile to github.

Finally, in the amazon instance I deployed my environment to apply changes and execute the command "RAILS_ENV=production bundle exec file.rb" (always use production) and the file execute normal.

Thanks all!