title: The type or namespace name 'Objects' does not exist in the namespace 'System.Data'
body: <p>I am using entities, C# and SQL Server to create an n-tier app. I am creating some base classes common to all my DAL components. In this base class, i want to handle the connection state of the ObjectContext base class inherited by entities object.</p>
  
  <p>Compiling throws the following error:  </p>
  
  <blockquote>
    <p>The type or namespace name 'Objects'
    does not exist in the namespace
    'System.Data' (are you missing an
    assembly reference?)</p>
  </blockquote>
  
  <p>Also, the using statement System.Data.Objects doesn't resolve for the same reason. </p>
  
  <p>I tried adding the assembly as reference, but couldn't find it in the .NET tab of assembly references.</p>
  
  <p>Any thoughts? Thanks!</p>