How to install popper.js with Bootstrap 4?

Question

From what I\'ve read so far, popper.js is a big pain with Bootstrap 4. I can\'t get it to work. I keep getting this error:

Error: Bootstrap dropdown r

Answer 1

I had problems installing it Bootstrap as well, so I did:

Install popper.js: npm install popper.js@^1.12.3 --save

Install jQuery: npm install jquery@1.9.1 --save

Then I had a high severity vulnerability message when installing jquery@1.9.1 and got this message:

run npm audit fix to fix them, or npm audit for details

So I did npm audit fix, and after another npm audit fix --force it successfully installed!