title: Could not find the conceptual model type
body: <p>I have two Entity Data models within a MVC3 project A and B.</p>
  
  <p>I have recently added the new entity data model B to deal with some new functionality, the issue is that now the existing code has stopped working and I am getting the following error when trying to access code within entity model A.</p>
  
  <p>The error message is: </p>
  
  <blockquote>
    <p>Could not find the conceptual model type 'project.models.Bclass'</p>
  </blockquote>
  
  <p>I do not understand why it is this new functionality has affected the current code seeing as entity model A has not change in any way. And functionality B is in a separate class and does not interfere with model A.</p>
  
  <p>When the new code is removed from the project and entity model B is excluded then the code works as it should.</p>
  
  <p>Here is some of the stacktrace from the error:</p>
  
  <pre><code>Exception : Could not find the conceptual model type for 'Project1.Models.CrossSession'.
  Application Class - method : System.Data.Metadata.Edm.MetadataWorkspace -- GetEdmSpaceType
  User : temp.user
  Url : http://localhost/project1/auth/message
  Stacktrace :    at System.Data.Metadata.Edm.MetadataWorkspace.GetEdmSpaceType(StructuralType objectSpaceType)
     at System.Data.Entity.Internal.InternalContext.UpdateEntitySetMappings()
     at System.Data.Entity.Internal.InternalContext.TryUpdateEntitySetMappingsForType(Type entityType)
     at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)
     at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()
     at System.Data.Entity.Internal.Linq.InternalSet`1.get_InternalContext()
  </code></pre>