Easy fix for webpack ERROR in Plugin "react" was conflicted ...

Regardless whether you just upgraded to React 18 or some of your Node dependencies in package.json, version conflicts are very annoying!

But there's an easy fix:

#webpack-dev-server-client-overlay {
  display: none;
}

Just insert these three lines of code in any top level CSS file (such as your index.css) and the error – at least its overlay – will be gone!

IRONY OFF
What was your latest temp fix that you accidentally pushed into a Git repo?