title: AutoMapperMappingException with source type System.Object
body: <p>I register Automapper as below:</p>
  <pre><code>builder.RegisterAutoMapper(config =&gt; config.AllowNullCollections = true, AppDomain.CurrentDomain.GetAssemblies());
  </code></pre>
  <p>I try to map as follows:</p>
  <pre><code>mapper.Map&lt;'destination-contract'&gt;(source-object);
  </code></pre>
  <p>in case my profile was missing, i have following exception message:
  Missing type map configuration or unsupported mapping.</p>
  <p>Mapping types:
  <strong>System.Object -&gt; 'destination-contract'</strong></p>
  <p>Why is the source type System.Object, while I specified the source type in the mapping profile?</p>
  <p>Anyone any idea?</p>
  <p>thanks in advance!</p>