title: Nuget error "Object reference not set to an instance of an object" while installing Entityframework 7 from Package Manager Console in VS2015
body: <p>I am trying to build a sample application using EF7 and mvc 6 in visual studio 2015 pre release.</p>
  
  <p>While installing both EF7 and MVC6 using package manager console getting this error.</p>
  
  <pre><code> PM&gt; Install-Package EntityFramework.Commands -Version 7.0.0-beta3 -Pre
   Attempting to gather dependencies information for package    
   'EntityFramework.Commands.7.0.0-beta3' with respect to project
   targeting '.NETFramework, Version=v4.5.3' Install-Package : Object
   reference not set to an instance of an object. At line:1 char:1
   + Install-Package EntityFramework.Commands -Version 7.0.0-beta3 -Pre
   + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       + CategoryInfo          : NotSpecified: (:) [Install-Package], Exception
       + FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand
  </code></pre>
  
  <p>Can any one help me how to resolve this issue, or I am doing right?</p>