title: Could not compute a complete dependency map for the project
body: <p>i would like to get rid of this message so build time dramatically decreases (it builds and runs ok).
  This warning appears in mtouch.</p>
  
  <blockquote>
    <p>warning MT3006: Could not compute a complete dependency map for the
    project. This will result in slower build times because Xamarin.iOS
    can't properly detect what needs to be rebuilt (and what does not need
    to be rebuilt). Please review previous warnings for more details.</p>
  </blockquote>
  
  <p>Test solution: helloworld mvvmcross solution with ios project and pcl (wp8+monotouch+net45+android) + Microsoft HTTP PCL package in pcl only + an async call to HttpClient.GetStringAsync in the pcl.</p>
  
  <p>Full log:</p>
  
  <blockquote>
    <p>warning MT3005: The dependency 'System.Windows, Version=2.0.5.0,
    Culture=neutral, PublicKeyToken=7cec85d7bea7798e' of the assembly
    'Cirrious.CrossCore, Version=1.0.0.0, Culture=neutral,
    PublicKeyToken=e16445fd9b451819' was not found. Please review the
    project's references.</p>
  
  <pre><code>warning MT3005: The dependency 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' of the assembly
  </code></pre>
    
    <p>'Cirrious.MvvmCross, Version=1.0.0.0, Culture=neutral,
    PublicKeyToken=e16445fd9b451819' was not found. Please review the
    project's references.</p>
  
  <pre><code>warning MT3005: The dependency 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' of the assembly
  </code></pre>
    
    <p>'Cirrious.MvvmCross.Binding, Version=1.0.0.0, Culture=neutral,
    PublicKeyToken=null' was not found. Please review the project's
    references.</p>
  
  <pre><code>warning MT3005: The dependency 'System.Net.Primitives, Version=3.9.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' of
  </code></pre>
    
    <p>the assembly 'Com.Catenum.Intouch.Business, Version=1.0.0.0,
    Culture=neutral, PublicKeyToken=null' was not found. Please review the
    project's references.</p>
  
  <pre><code>warning MT3005: The dependency 'System.Net.Http, Version=1.5.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' of the assembly
  </code></pre>
    
    <p>'Com.Catenum.Intouch.Business, Version=1.0.0.0, Culture=neutral,
    PublicKeyToken=null' was not found. Please review the project's
    references.</p>
  
  <pre><code>warning MT3005: The dependency 'System.Threading.Tasks, Version=1.5.11.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' of
  </code></pre>
    
    <p>the assembly 'Com.Catenum.Intouch.Business, Version=1.0.0.0,
    Culture=neutral, PublicKeyToken=null' was not found. Please review the
    project's references.</p>
  
  <pre><code>warning MT3006: Could not compute a complete dependency map for the project. This will result in slower build times because
  </code></pre>
    
    <p>Xamarin.iOS can't properly detect what needs to be rebuilt (and what
    does not need to be rebuilt). Please review previous warnings for more
    details.</p>
  </blockquote>