title: Run two npm commands concurrently
body: <p>I've setup <code>json-server</code> and runs successfully on <code>port-3000</code> then run <code>npm start</code> it runs on other port <code>3001</code>.</p>
  
  <p>But I want to run both concurrently. I tried with <a href="https://www.npmjs.com/package/concurrently" rel="nofollow noreferrer">Concurrently</a> but didn't work. </p>
  
  <p>When I execute this command :</p>
  
  <pre><code>$ concurrently "npm start" "json-server --watch ./topPanelData.json"
  </code></pre>
  
  <p>Error message: </p>
  
  <p><a href="https://i.stack.imgur.com/L73i1.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/L73i1.png" alt="Error message"></a></p>