title: How to downgrade angular7 to angular6
body: <p>I have tried to downgrade <strong>angular 7</strong> to <strong>angular 6</strong> by running the following <code>npm</code> commands:</p>
  
  <pre><code>npm uninstall -g angular-cli
  npm cache clean
  npm install -g angular-cli@6.1.1
  </code></pre>
  
  <p>However <code>angular/cli</code> <strong>7 version</strong> is still displaying in my <code>package.json</code> file. I need help to downgrade <code>angular7</code> to <code>angular6</code>.</p>