title: ASP.NET 5 Adding MVC6 Unit Test Project
body: <p>I'm trying to add Unit Test Project to a ASP.NET 5 Solution.</p>
  
  <p>I've added  ASP.NET 5 class library project and referenced the required packaes in my project.json as below :-</p>
  
  <pre><code>{
      "dependencies": {
          "xunit.runners": "1.0.0-alpha3",
          "Moq": "4.2.1502.911",
          "xunit": "2.0.0-rc4-build2924"
  
      },
      "commands": {
          "test": "Xunit.KRunner"
      },
      "frameworks": {
          "net451": {
              "dependencies": {
              }
          }
  
      }
  }
  </code></pre>
  
  <p>When I try to reference a to an attrivute of Xunit in a class file as follows :-</p>
  
  <p>using Xunit;</p>
  
  <pre><code>namespace LondonUnderground.UnitTests
  {
      public class RoutesTests
      {
  
          [Fact]
          public void TestShizz()
          {
  
          }
  
  
      }
  }
  </code></pre>
  
  <p>I'm getting an error, telling me that i need the System.Runtime version 4.0.0.0 in order to access "Attribute" class.</p>
  
  <p>If i try adding a reference to this in the project.json file, it  installs System.Runtime 4.0.20.0 Beta.</p>
  
  <p>Any suggestions?</p>