title: Unable to find nuget local source error occurred while restoring nuget packages the local source doesn't exist
body: <p>I've been given a visual studio 2017 solution.  When I open it fails as with the error:</p>
  
  <p><code>Error occurred while restoring NuGet packages: The local source '\\network-location\' doesn't exist.</code></p>
  
  <p>I can manually acquire a copy of these packages but I don’t know where this original path is configured and how I would go about changing it to the new location.</p>
  
  <p>Any suggestions as to where I should look please?</p>