title: Where is the Gemfile in Windows 7 located?
body: <p>i need some help at ruby on rails specially with ruby gems.</p>
  
  <p>If i use the "rails generate scaffold something", I get always the failure:</p>
  
  <p>"Specified 'mysql2' for database adapter, but the gem is not loaded. Add 'gem' mysql2 to your Gemfile(Gem::LoadError)"</p>
  
  <p>If i use the command "gem -list" mysql2(0.3.15) will show up in this list.</p>
  
  <p>After some search i read(<a href="https://stackoverflow.com/questions/9609985/please-install-mysql-adapter-gem-install-activerecord-mysql-adapter">Install mysql adapter gem install</a>) 
  that i should edit the Gemfile and add gem 'mysql2', "~>0.3.15" instead of gem 'mysql2' in Gemfile.</p>
  
  <p>So my problem is now where is this Gemfile located. I use ruby on Windows 7, and i installed Ruby with the "railsinstaller-2.2.2"</p>
  
  <p>Regards, dot</p>