title: The type or namespace name "WebRequestHandler" could not be found
body: <p>I am trying to use the Dropbox.API code that is listed here:</p>
  
  <p><a href="https://github.com/dropbox/dropbox-sdk-dotnet/tree/master/dropbox-sdk-dotnet/Examples/SimpleTest" rel="noreferrer">https://github.com/dropbox/dropbox-sdk-dotnet/tree/master/dropbox-sdk-dotnet/Examples/SimpleTest</a></p>
  
  <p>I copied their Program.cs into my Program.cs without making other changes to other files in my solution/project.</p>
  
  <p>I am getting </p>
  
  <pre><code>The type or namespace name "WebRequestHandler" could not be found.
  </code></pre>
  
  <p><a href="https://i.stack.imgur.com/2NQQl.png" rel="noreferrer"><img src="https://i.stack.imgur.com/2NQQl.png" alt="enter image description here"></a></p>
  
  <p>Despite having this using statement:</p>
  
  <pre><code>using System.Net.Http;
  </code></pre>
  
  <p>The help text says to add an assembly reference, but I don't know what I would add.</p>
  
  <p>I tried moving the <code>using System.Net.Http</code> to both inside and outside the class.</p>
  
  <p>I am new to C# and .Net development so expect this to be a really newbie problem.</p>