title: Installing Packages through Nuget - "Central Directory corrupt"
body: <p>I'm trying to add a package to my project using NuGet (in VS2015).  When I click the "Install" button I see </p>
  
  <blockquote>
    <p>Downloading missing packages...</p>
  </blockquote>
  
  <p>at the top of the screen with a progress bar.</p>
  
  <p>After a moment the message is replaced with -</p>
  
  <blockquote>
    <p>An error occurred while trying to restore packages: Central Directory corrupt.</p>
  </blockquote>
  
  <p>with a "Restore" button at the end which does the same process.</p>
  
  <p>Anyone have any idea how to fix this?</p>