title: Could not determine storage version - Entity Framework
body: <p>I'm implementing code first pattern in a separate project in my current solution. Since I did this and I initialize my connection string in <code>DbContext</code> I get this weird error:</p>
  
  <blockquote>
    <p>Could not determine storage version; a valid storage connection or a
    version hint is required.</p>
  </blockquote>
  
  <p>I'm using Entity Framework 5.0.0.0 and the rest of my solutions projects work great as they use <code>EDMX</code> files for database access yet only my code first project throws this exception. What is it and why?</p>