title: Automapper error on simple conversion without CreateMap
body: <p>I have these 2 models:</p>
  
  <pre><code>public class SiteSettingsViewModel
  {
      public decimal SubscriptionFee { get; set; }
  }
  
  public class SiteSettings
  {
      public decimal SubscriptionFee { get; set; }
  }
  </code></pre>
  
  <p>and the code:</p>
  
  <pre><code>var model = Mapper.Map&lt;SiteSettings, SiteSettingsViewModel&gt;(settingService.GetSettings());
  </code></pre>
  
  <p>Which throws the error of:</p>
  
  <blockquote>
    <p>Trying to map WebApp1.Domain.Site.SiteSettings to WebApp1.WebUI.ViewModel.SiteSettingsViewModel.
    Missing type map configuration or unsupported mapping.
    Exception of type 'AutoMapper.AutoMapperMappingException' was thrown.</p>
  </blockquote>
  
  <p>Why do I need to put the code:</p>
  
  <pre><code>Mapper.CreateMap&lt;SiteSettings, SiteSettingsViewModel&gt;();
  </code></pre>
  
  <p>To me, this seems like I'm writing monkey code. This is not needed.</p>
  
  <p>Why didn't the 1 line work?</p>