title: The 'Visual Studio Explorers and Designer Package' package did not load correctly
body: <p>Every time I open solution in Visual Studio 2015 I get following message:</p>
  
  <p><a href="https://i.stack.imgur.com/ua1tQ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ua1tQ.png" alt="enter image description here"></a></p>
  
  <p>Here are last entries from ActivityLog.xml:</p>
  
  <pre><code>&lt;entry&gt;
     &lt;record&gt;827&lt;/record&gt;
     &lt;time&gt;2015/12/23 11:26:13.919&lt;/time&gt;
     &lt;type&gt;Error&lt;/type&gt;
     &lt;source&gt;VisualStudio&lt;/source&gt;
     &lt;description&gt;SetSite failed for package [Visual Studio Explorers and Designers Package][Object reference not set to an instance of an object.]:{   at Microsoft.VSDesigner.VSDMenus.Initialize(IServiceProvider serviceProvider)&amp;#x000D;&amp;#x000A;   at Microsoft.VSDesigner.VSDesignerPackage.VSDesignerPackage.Initialize()&amp;#x000D;&amp;#x000A;   at Microsoft.VisualStudio.Shell.Package.Microsoft.VisualStudio.Shell.Interop.IVsPackage.SetSite(IServiceProvider sp)}&lt;/description&gt;
     &lt;guid&gt;{8D8529D3-625D-4496-8354-3DAD630ECC1B}&lt;/guid&gt;
     &lt;hr&gt;80004003 - E_POINTER&lt;/hr&gt;
     &lt;errorinfo&gt;Object reference not set to an instance of an object.&lt;/errorinfo&gt;&lt;/entry&gt;
  </code></pre>
  
  <p>I followed suggestions found in a similar <a href="https://stackoverflow.com/questions/31521438/vs2015-the-nugetpackage-package-did-not-load-correctly">question</a> but with no success.</p>
  
  <p>Unfortunately re-installing NuGet via Extensions and Updates doesn't solve the issue.</p>