title: Fixing the "ruby installation is missing psych" error?
body: <p>I'm running Ruby ruby 1.9.3p125 and I keep getting this error which is making it impossible for me to do any kind of development in Rails. </p>
  
  <blockquote>
    <p>It seems your ruby installation is missing psych (for YAML output). To
    eliminate this warning, please install libyaml and reinstall your
    ruby.</p>
  </blockquote>
  
  <p>I've Googled around and tried seemingly everything but nothing seems to be working. I'm really eager to start on some new projects but can't seem to get around this hurdle.</p>
  
  <p>Any help is greatly appreciated!</p>