title: 'ObjectContext' does not contain a definition for 'Entry' and no extension method 'Entry'
body: <p>I upgraded my <code>EntityModel</code> to version <code>4.3</code> using <code>NuGet</code>.</p>
  
  <p>Now i want to change my <code>EntityObject.State</code>, but it cant find the <code>.Entry()</code> method.</p>
  
  <p>The current state is <code>Deleted</code>.</p>
  
  <p>This is what i want to do:</p>
  
  <p><code>someObjectContext.Entry(someEntityObject).State = EntityState.Unchanged;</code></p>
  
  <p>The referances to EntityFramework and EntityFramework.Extended are added.</p>
  
  <p>So, what am i missing?</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>My <code>NuGet</code> output:</p>
  
  <pre><code>PM&gt; Install-Package EntityFramework -Version 4.3.1
  'EntityFramework 4.3.1' already installed.
  Data already has a reference to 'EntityFramework 4.3.1'.
  </code></pre>