title: Nuget not installing packages
body: <p><strong>Goal</strong></p>
  <p>My goal is to simply install a package via NuGet Package Manager.</p>
  <p>I decided to delete Visual Studio 2019 and re-install it. Hoping it'll solve my issue. Then, I created a new project - tried downloading a <code>Newtonsoft.Json</code> package and same errors are displayed.</p>
  <p><strong>Error</strong></p>
  <pre><code>Severity    Code    Description Project File    Line    Suppression State
  Error       The feed 'nuget.org [https://api.nuget.org/v3/index.json]' lists package 'Newtonsoft.Json.13.0.1' but multiple attempts to download the nupkg have failed. The feed is either invalid or required packages were removed while the current operation was in progress. Verify the package exists on the feed and try again.
  Unable to find package 'Newtonsoft.Json.13.0.1'.                
  </code></pre>
  <p><strong>What I tried</strong></p>
  <p>I tried the following solution: <a href="https://stackoverflow.com/a/52327750/12485722">https://stackoverflow.com/a/52327750/12485722</a></p>
  <p>It displays the same error again.</p>
  <p>Also, have tried to install another package such as <code>Microsoft.Extensions.DependencyInjection</code></p>
  <p>I then took a look into the Output and this is displayed:</p>
  <pre><code>  GET https://api.nuget.org/v3-flatcontainer/newtonsoft.json/index.json
    OK https://api.nuget.org/v3-flatcontainer/newtonsoft.json/index.json 199ms
    GET https://api.nuget.org/v3-flatcontainer/newtonsoft.json/13.0.1/newtonsoft.json.13.0.1.nupkg
    OK https://api.nuget.org/v3-flatcontainer/newtonsoft.json/13.0.1/newtonsoft.json.13.0.1.nupkg 1ms
    GET https://api.nuget.org/v3-flatcontainer/newtonsoft.json/13.0.1/newtonsoft.json.13.0.1.nupkg
    OK https://api.nuget.org/v3-flatcontainer/newtonsoft.json/13.0.1/newtonsoft.json.13.0.1.nupkg 96ms
    GET https://api.nuget.org/v3-flatcontainer/newtonsoft.json/13.0.1/newtonsoft.json.13.0.1.nupkg
    OK https://api.nuget.org/v3-flatcontainer/newtonsoft.json/13.0.1/newtonsoft.json.13.0.1.nupkg 96ms
    GET https://api.nuget.org/v3-flatcontainer/newtonsoft.json/index.json
    OK https://api.nuget.org/v3-flatcontainer/newtonsoft.json/index.json 498ms
    CACHE https://api.nuget.org/v3-flatcontainer/newtonsoft.json/index.json
    CACHE https://api.nuget.org/v3-flatcontainer/newtonsoft.json/index.json
  The feed 'nuget.org [https://api.nuget.org/v3/index.json]' lists package 'Newtonsoft.Json.13.0.1' but multiple attempts to download the nupkg have failed. The feed is either invalid or required packages were removed while the current operation was in progress. Verify the package exists on the feed and try again.
    Unable to find package 'Newtonsoft.Json.13.0.1'.
  Time Elapsed: 00:00:00.9643895
  </code></pre>
  <p>I also followed steps from the Microsoft website <em>(Quick solution for Visual Studio users)</em> : <a href="https://docs.microsoft.com/en-us/nuget/consume-packages/package-restore-troubleshooting" rel="nofollow noreferrer">https://docs.microsoft.com/en-us/nuget/consume-packages/package-restore-troubleshooting</a></p>
  <p>Nothing changed.</p>
  <p>Why is my NuGet Packages not installing?</p>
  <p><strong>NuGet.Config</strong></p>
  <p>This is how my <em>NuGet.Config</em> looks like. Found in <code>C:\Users\SomeUser\AppData\Roaming\NuGet</code>.</p>
  <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
  &lt;configuration&gt;
    &lt;packageSources&gt;
      &lt;add key=&quot;nuget.org&quot; value=&quot;https://api.nuget.org/v3/index.json&quot; protocolVersion=&quot;3&quot; /&gt;
    &lt;/packageSources&gt;
  &lt;/configuration&gt;
  </code></pre>