Bootstrap 4.2.1 - Failed to execute 'querySelector' on 'Document': '[removed]void(0);' is not a valid selector

Question

I am working on a project which I started building on bootstrap 4.0.0. During this project, I had updated bootstrap regulary whenever the new versions ( 4.1.0

Answer 1

as others said in comments

This is a bug in Bootstrap 4.2.1 and will be fixed in 4.3.0: github.com/twbs/bootstrap/issues/27903

just need to user 4.3.0 of bootstrap

just replace this

with this