title: React js isn't running my app on localhost:3000
body: <p>hi all i used to work on <code>MERN</code> project for sometime but now my <code>react</code> app wont run on <code>localhost:3000</code>. So far i tried the following </p>
  
  <ol>
  <li>Updated <code>node.js</code>/ reinstalled node.js </li>
  <li>create new app using <code>npx create-react-app</code> but still <code>localhost:3000</code> isn't working</li>
  </ol>
  
  <p>I checked if port is opened or not using <code>netstat -aon</code> but <code>localhost:3000</code> wasn't there. But <code>0.0.0.0:3000</code> is there. So my attempt to run <code>telnet 127.0.0.1 3000</code> was not successful.</p>
  
  <p>Am using <code>windows 10</code> OS and latest version of nodejs </p>