I am working with Angular(6) application, and I am trying to use FA icons, and drop-down with no luck. I am successfully using FA(4) icons, like:
A stumbling block for me was the final part of their installation docs. It says to reference the all.css file in your head tag.
I did it incorrectly.
The right way to link to this is the following:
Hope this helps!
This should get it working for you. Also, I would recommend reinstalling the latest version of the npm package using the FontAwesome guide