title: UmbracoCms installation error
body: <p>I'm getting this error when I try to run the following line:</p>
  
  <pre><code>Install-Package UmbracoCms
  </code></pre>
  
  <p>And I'm getting this error:</p>
  
  <pre><code>Install-Package : An error occurred while downloading package 'Newtonsoft.Json.10.0.2 : ' from source 'https://www.nuget.org/api/v2/'
  </code></pre>
  
  <p>I have tried to do the following:</p>
  
  <p><code>Install-Package Newtonsoft.Json -Version 10.0.2</code> </p>
  
  <p>And I still got this error: </p>
  
  <pre><code>Package 'Newtonsoft.Json.10.0.2 : ' does not exist in project 'Umbraco_MVC'
  </code></pre>
  
  <p>I also tried to delete the line with Newtonsoft in packages.config, but there is no line with that reference there</p>