title: Uncaught Error: Bootstrap dropdown require Popper.js
body: <p>I used a layout(Gentelella) for my project everything was fine and then in the middle of production, when I tried to run my project and some of the layout is not working (the dropdown).</p>
  
  <p>So I have encountered this kind of error, I kind to manage the error by adding this <a href="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.0.4/popper.js" rel="nofollow noreferrer">popper.js file</a> as said in this <a href="https://stackoverflow.com/questions/45661863/bootstrap-min-js6-uncaught-error-bootstrap-dropdown-require-popper-js">question</a> and writing it before my scripts but the problem is it destroyed my layout.</p>
  
  <p>How can I fix this? </p>
  
  <p>And I noticed from searching some answer for this problem, this error occur just few days ago from others. Never saw a topic about this problem posted older than a week(base on the date this question is posted).</p>