title: How do I solve a null exception when I try to create an adapter in MvvmCross Bluetooth-LE (Xamarin Forms)?
body: <pre class="lang-cs prettyprint-override"><code>var adapter = Mvx.Resolve&lt;MvvmCross.Plugins.BLE.Bluetooth.LE.IAdapter&gt;();
  App.SetAdapter(adapter);
  </code></pre>
  
  <p>I'm trying to use the BLE Plugin for MvvMCross but it returns a <code>NullReferenceException</code>.</p>