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).
So I have encountered this kind of error, I kind to manage the error by adding this popper.js file as said in this question and writing it before my scripts but the problem is it destroyed my layout.
How can I fix this?
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).