title: How to resolve an error "Non-zero exit code (1)" while installing bootstrap package for a flask project in pycharm
body: <p>How to resolve an error "Non-zero exit code (1)" while installing bootstrap package for a flask project in pycharm</p>
  
  <p>I am trying following command in flask in pycharm to install a bootstrap package required for my project.</p>
  
  <p><strong>here is what I am writing:</strong></p>
  
  <pre><code>from flask.ext.bootstrap import Bootstrap
  </code></pre>
  
  <p>However, this gives the following error message:</p>
  
  <pre><code>*Collecting Bootstrap*
  
    Could not find a version that satisfies the requirement Bootstrap (from versions: )
  No matching distribution found for Bootstrap
  </code></pre>
  
  <p>I am new to programming, also very new to learning flask web framework. Any help here will be highly appreciated. Thanks and have a nice weekend.<a href="https://i.stack.imgur.com/hAEoa.png" rel="nofollow noreferrer">enter image description here</a></p>