title: how to fix ChakraCore NuGet package error?
body: <p>When initializing a new React Native Windows WPF project, this error happens:</p>
  
  <p><code>NuGet Package restore failed for project Native: Unable to find version '1.4.1-preview-00010-42060' of package 'Microsoft.ChakraCore'.
  https://www.myget.org/F/chakracore-preview/api/v3/index.json: Package 'Microsoft.ChakraCore.1.4.1-preview-00010-42060' is not found on source 'https://www.myget.org/F/chakracore-preview/api/v3/index.json'.
  https://api.nuget.org/v3/index.json: Package 'Microsoft.ChakraCore.1.4.1-preview-00010-42060' is not found on source 'https://api.nuget.org/v3/index.json'.
  </code></p>
  
  <p>If I create a standalone project and add the same NuGet package reference, I get the same error -- even on Xamarin Studio Mac. </p>