title: Could not load System.ServiceModel.ServiceBehaviorAttribute in .NET Core project
body: <p>I have a .NET Core test project. In this, I need to call WebApi and WCF services (as we have migrated only some of our projects and I need to generate test data using old and new services). I have added the System.ServiceModel.Primitives package to the project but I still get this exception:</p>
  <pre><code>System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
   ---&gt; System.TypeLoadException: Could not load type 'System.ServiceModel.ServiceBehaviorAttribute' from assembly 'System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
  </code></pre>
  <p>Has somebody an idea what I could have missed?</p>