title: Error CS0012 The type 'IUnityContainer' is defined in an assembly that is not referenced
body: <p>The IUnityContainer property "Container" exist in intellisense but the implementation reference is not found. The fix is pointing to an earlier version of Unity, (4.0.0.0). I'm using version 5.3.2. Is there an additional reference I can Add to fix the error?</p>
  
  <p>The figure is the error:
  Error CS0012 The type 'IUnityContainer' is defined in an assembly that is not referenced. install Microsoft.Practices.Unity 4.0.0.0. And the second figure are the NuGet packages I currently installed.</p>
  
  <p>Thank you for your support and answer.</p>
  
  <p>King</p>
  
  <p><a href="https://i.stack.imgur.com/Svqgg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Svqgg.png" alt="Reference to old version of Unity"></a>
  <a href="https://i.stack.imgur.com/ayQU1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ayQU1.png" alt="NuGet packages referenced"></a></p>