title: There are no active source control providers
body: <p>My Ubuntu installation of the VS Code editor states it has no active source control providers:</p>
  
  <p><a href="https://i.stack.imgur.com/diAHg.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/diAHg.png" alt="No source control"></a></p>
  
  <p>I'm using Ubuntu, and running </p>
  
  <pre><code>$ git --version
  </code></pre>
  
  <p>indicates it is v2.18.0</p>
  
  <p>There is a .git folder in my project.</p>
  
  <p>How do I fix this problem?</p>