title: Model backing a DB Context has changed; Consider Code First Migrations
body: <blockquote>
    <p>The model backing the 'MyDbContext' context has changed since the database was created. Consider using Code First Migrations to update the database (<a href="http://go.microsoft.com/fwlink/?LinkId=238269" rel="noreferrer">http://go.microsoft.com/fwlink/?LinkId=238269</a>).</p>
  </blockquote>
  
  <p>What causes this to happen? I've literally just created a brand new database and have changed nothing, but every time I try to access a model from a controller it throws this. </p>
  
  <p><strong>Edit</strong></p>
  
  <p>It has something to do with the fact that I was attempting to share a connection string (i.e. a database) with two separate entities.</p>