title: vNext can't see namespace in referenced package
body: <p>Program.cs</p>
  
  <pre><code>using System;
  using RazorEngine;
  
  namespace ConsoleApp1
  {
      public class Program
      {
          public static void Main(string[] args)
          {
              string template = "Hello @Model.Name! Welcome to Razor!";
              string result = Razor.Parse(template, new { Name = "World" });
              Console.WriteLine(result);
              Console.WriteLine("Press enter to exit.");
              Console.ReadLine();
          }
      }
  }
  </code></pre>
  
  <p>project.json</p>
  
  <pre><code>{
    "version": "1.0.0-*",
    "dependencies": {
      "RazorEngine": "3.4.2"
    },
    "commands": {
      "run": "run"
    },
    "frameworks": {
      "aspnet50": {},
      "aspnetcore50": {
        "dependencies": {
          "System.Console": "4.0.0-beta-*"
        }
      }
    }
  }
  </code></pre>
  
  <p>When I run <code>kpm build</code>, I get this output (included only relevant info)</p>
  
  <pre><code>Building RazerEngineTester for Asp.Net,Version=v5.0
  Using Project dependency RazerEngineTester 1.0.0
  Source: /Users/mason/Desktop/Dot Net Solutions/RazerEngineTester/project.json
  
  Using Package dependency RazorEngine 3.4.2
  Source: /Users/mason/.kpm/packages/RazorEngine/3.4.2
  File: lib/net45/RazorEngine.dll
  
  Building RazerEngineTester for Asp.NetCore,Version=v5.0
  Using Project dependency RazerEngineTester 1.0.0
  Source: /Users/mason/Desktop/Dot Net Solutions/RazerEngineTester/project.json
  
  Using Package dependency RazorEngine 3.4.2
  Source: /Users/mason/.kpm/packages/RazorEngine/3.4.2
  
  Program.cs(2,7): error CS0246: The type or namespace name 'RazorEngine' could not be found (are you missing a using directive or an assembly reference?)
  </code></pre>
  
  <p>Why am I getting this compilation error even though it pulls down the RazorEngine NuGet package correctly, and <a href="https://github.com/Antaris/RazorEngine/blob/master/src/source/RazorEngine.Core/Razor.cs" rel="nofollow">according to the source code</a>, the <code>RazorEngine</code> namespace exists?</p>