title: Uninitialized constant error using Ruby in RubyMine
body: <p>Has anyone used RubyMine who could help me out?</p>
  
  <p>I am new to RubyMine, and when I create my first project and add a few classes and wire them together for a simple meaningless application I am getting this error:
  "uninitialized constant RubyApp (NameError)"</p>
  
  <p>But when I take all the classes and put them in one file then run it, it runs fine.</p>
  
  <p>What am I missing about using RubyMine here?</p>
  
  <p>Thanks for the help.</p>