title: fullcalendar cannot read property 'fn' of undefined
body: <p>I embedded <code>fullcalendar.min.js</code> to my project, but I get this error:</p>
  
  <blockquote>
    <p>error log show "Cannot read property 'fn' of undefined"</p>
  </blockquote>
  
  <p>See picture below.</p>
  
  <p>I checked this issue, it's suggested to use <code>jQuery 2.0.0+</code>, and for sure I use <code>jQuery v3.3.1</code>, but it does not help to solve problem.</p>
  
  <p><a href="https://i.stack.imgur.com/aJ0dJ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/aJ0dJ.png" alt="enter image description here"></a></p>