title: Using nuget packages on machine with no internet
body: <p>I have a .net core intranet web app which uses certain nuget packages. I have two machines, my local computer with internet and a test machine with no connection to outside internet. The app works fine on my computer.
  All the nuget packages are locally stored and referred by the web app.</p>
  
  <p>When I try to build the app on test machine, I am getting the following error</p>
  
  <pre><code> C:\Program Files\dotnet\sdk\3.0.100\Nuget.targets(123,5): error : Unable to load the service index for source https://api.nuget.org/v3/index.json
  </code></pre>
  
  <p>What process is actually looking for service index from outside url? Of course it cannot find because there is no internet. No proxies involved so nothing to put in nuget.config</p>
  
  <p>All the packages are locally stored. What can I do to resolve this issue? </p>
  
  <p>Thank you</p>