How to debug Xamarin iOS ERROR MT2002 in C#?
<p>This app should get a data from MySQL server and show it, but I am getting this error:</p>

<blockquote>
  <p>MTOUCH: error MT2002: Failed to resolve "System.Configuration.ConfigurationException" reference from "System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"</p>
</blockquote>