title: Unable to generate an explicit migration in entity framework
body: <p>I am adding a new migration but this message shows:</p>
  
  <blockquote>
    <p>Unable to generate an explicit migration because the following
    explicit migrations are pending: [201203170856167_left]. Apply the
    pending explicit migrations before attempting to generate a new
    explicit migration.</p>
  </blockquote>
  
  <p>Can any one help me?</p>