title: Your Ruby version is 2.5.1 but your Gemfile specified 2.4.0
body: <p>I am getting this error </p>
  
  <blockquote>
    <p>Your Ruby version is 2.5.1 but your Gemfile specified 2.4.0</p>
  </blockquote>
  
  <p>How can i fix this or atleast upgrade Ruby on Gemfile.</p>