title: Why am I getting error "No valid versions available for undefined" while installing create-react-app
body: <p>I'm trying to install React through command prompt. NodeJS is already installed. </p>
  
  <p>When I try to run this command:</p>
  
  <pre><code>npm i -g create-react-app
  </code></pre>
  
  <p>It is displaying error as shown below:</p>
  
  <pre><code>npm ERR! code ENOVERSIONS
  npm ERR! No valid versions available for undefined
  
  npm ERR! A complete log of this run can be found in:
  npm ERR!     C:\Users\xyz\AppData\Roaming\npm-cache\_logs\2019-12-10T10_51_39_2222-debug.log
  </code></pre>