title: ENUM with description on VS Code
body: <p>Just to contextualize, I'm using visual studio code, and I created a new project (webapplication) by "yo aspnet".</p>
  
  <p>I tried to create a ENUM with description, but I don't know what is wrong with this code. The error is:</p>
  
  <blockquote>
    <p>"The type or namespace name 'DescriptionAttribute' could not be found (are you missing a using directive or an assembly reference?) [dnxcore50] DescriptionAttribute.DescriptionAttribute(string description)".</p>
  </blockquote>
  
  <pre><code>using System.ComponentModel;
  
  public enum Category
  {
    [DescriptionAttribute("Habitação")]HABITACAO = 1, 
    [DescriptionAttribute("Cuidados Pessoais")]CUIDADOSPESSOAIS = 2,
    [DescriptionAttribute("Saúde")]SAUDE = 3,
    [DescriptionAttribute("Outros")]OUTROS = 999
  }
  </code></pre>