title: Visual Studio 2017 XUnit doesn't discover tests
body: <p>I am following along the examples in the APRESS "Building Web Applications with Visual Studio 2017" book.</p>
  
  <p>He has the reader set up a testing project by hand as a C# Console Application.</p>
  
  <p>I pulled down the code and opened up his solution.  I am comparing mine to his side by side:</p>
  
  <p><a href="https://i.stack.imgur.com/d2XNF.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/d2XNF.png" alt="enter image description here"></a></p>
  
  <p>All the Unit Testing Nuget packages are the same.
  But when I build both solutions his Tests get discovered and mine do not.</p>
  
  <p><a href="https://i.stack.imgur.com/G3qeb.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/G3qeb.png" alt="enter image description here"></a></p>
  
  <p>All it should be doing at this point is discovering this:</p>
  
  <pre><code>    [Fact]
      public void FirstTest()
      {
          Assert.True(true);
      }
  </code></pre>
  
  <p>Everything looks the same.
  I created the console project. Added the needed Nuget Packages. Created the needed references. Added the test.</p>
  
  <p>I don't know what else it needs. I followed the directions exactly.</p>