title: Unable to build C# project
body: <p><br> I am having some weird problem. <br>
  When using this code I am unable to build, however it gives me no build errors.</p>
  
  <p><strong>the code</strong></p>
  
  <pre><code>public void myMethod()
  {              
      //This returns a string in JSON format.
      var jsonResponse = myApi.ReadMobileDevice("1");
  
  
      dynamic dynamicJson= JsonConvert.DeserializeObject(jsonResponse);
  
      //THIS LINE BREAKS MY BUILD. NO BUILD ERRORS SHOWN
      var jValue = dynamicJson["general.display_name"];
  }
  </code></pre>
  
  <p>Can anyone tell me why my build braks, and also why no build errors are shown?<br><br><strong>UPDATE - Output</strong>
  <br>*Also changed var to string</p>
  
  <pre><code>1&gt;------ Build started: Project: Control, Configuration: Debug x86 ------
  1&gt;  Restoring NuGet packages...
  1&gt;  To prevent NuGet from downloading packages during build, open the Visual Studio Options dialog, click on the Package Manager node and uncheck 'Allow NuGet to download missing packages'.
  1&gt;  All packages listed in packages.config are already installed.
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(563,28,563,40): error CS0656: Missing compiler required member 'Microsoft.CSharp.RuntimeBinder.CSharpArgumentInfo.Create'
  1&gt;C:\ActacomProjects\DEV-Google\Control\Classes\DomainObjects\Schedules\HTTPSchedulesResponse.cs(41,34,41,36): warning CS0168: The variable 'Ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\Classes\DomainObjects\Schedules\HTTPSchedulesResponse.cs(87,30,87,32): warning CS0168: The variable 'Ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(1225,26,1225,45): warning CS0219: The variable 'recreateApplication' is assigned but its value is never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(1809,71,1809,74): warning CS0168: The variable 'dnf' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(1813,54,1813,56): warning CS0168: The variable 'ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(5017,34,5017,36): warning CS0168: The variable 'Ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(5087,42,5087,44): warning CS0168: The variable 'Ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(5154,42,5154,44): warning CS0168: The variable 'Ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(5192,42,5192,44): warning CS0168: The variable 'Ex' is declared but never used
  1&gt;C:\ActacomProjects\DEV-Google\Control\ModifyService.svc.cs(5267,42,5267,44): warning CS0168: The variable 'Ex' is declared but never used
  ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
  </code></pre>