title: Entity Framework Core does not contain a definition for 'Include'
body: <p>I am trying to work with Entity Framework Core 1.0 and trying to utilize the .Include when filling objects through the dbcontext.</p>
  
  <pre><code>        EFTestContext context = new EFTestContext();
          var testEntity = context.TestEntity
              .Include(t =&gt; t.TestEntity2)
              .ToList();
  </code></pre>
  
  <p>It give me the error</p>
  
  <p>does not contain a definition for 'Include' and no extension method 'Include' accepting a first argument of type 'DbSet' could be found</p>
  
  <p>The only similar thing I found so far in Stackoverflow is   </p>
  
  <p><a href="https://stackoverflow.com/questions/20017579/iqueryablet-does-not-contain-a-definition-for-include-and-no-extension-metho">IQueryable&lt;T&gt; does not contain a definition for &#39;Include&#39; and no extension method &#39;Include&#39;</a></p>
  
  <p>But adding the using statement</p>
  
  <pre><code>using System.Data.Entity;
  </code></pre>
  
  <p>Just give me the error</p>
  
  <p>The type or namespace name 'Entity' does not exist in the namespace 'System.Data' (are you missing an assembly reference?)</p>
  
  <p>Anyone know what I need to get the Include to show up with WF Core 1.0?</p>