title: VS2017 - Payload contains two or more files with the same destination path
body: <p>I have a Xamarin project (UWP and iOS) building and running well in VS2015.
  The project contains some Universal Windows and iOS projects, and many PCL used by both platforms (for the view models, the services and the database access).</p>
  
  <p>One by one, the PCLs are building correctly.</p>
  
  <p>But when I try to build the main Universal Windows project I get this error :</p>
  
  <pre><code>Error   APPX1101
  Payload contains two or more files with the same destination path 'One.Of.My.Project.pdb'
  Source files: 'My.UniversalWindows.Project.scproj'
  </code></pre>
  
  <p>When I go in the file explorer I can find the pdb file in both \bin and \obj directory.</p>
  
  <p>In VS2015, everything is building / running well. I have this build error only on VS2017.</p>
  
  <p>The Target and Min version of my UWP projects are Build 14393 (Anniversary Edition) and my NuGet packages are updated (specially Microsoft.NETCore.UniversalWindowsPlatform in v5.3.1)</p>