title: Retrofit 2.0 method without response
body: <p>In my current android project I'm sending some data to my web server with the new Retrofit 2.0 library. I only want to run a script there and the server does not return anything. I thought I can do this with this method:</p>
  
  <pre><code>@POST("persons/insert.php")
  Call&lt;Void&gt; insert(@Field("Name") String name);
  </code></pre>
  
  <p>My problem now is, that Retrofit jumps to the <code>onFailure</code> method although the server returns 200. That happens because nothing can be converted to <code>Void</code>. So how should I fix this method? I want that the <code>onResponse</code> method is called if the server sends 200 back and the <code>onFailure</code> if an error occurred. How can I achieve that?</p>