title: ruby mysql2 gem installation issues
body: <p>Hi
   i have to install mysql2 gem for my ruby application. But when i try to install mysql2 gem using "gem install mysql2" it shows an error "Enclosing class/module 'mMysql2' for class Client not known". I have already installed mysql @ /usr/bin location. I have run the "gem install mysql2" command from the path /usr/bin, but it shows the same issue.Because of this issues i cannot create my model for ruby on rails project using the command "rails g model contact" it show an error of gem mysql2 is not installed. i have spend long time for googling for tracking this issues, unfortunately no forum have the correct answer. Please help me </p>