Angular CLI gives me “TypeError: callbacks[i] is not a function” when I “ng serve”

Question

I literally just made a fresh installation of the Angular CLI in order to try it out and I don\'t have a clue on what\'s causing the following error on the command line:

Answer 1

As stated here https://github.com/angular/angular-cli/issues/9550 it's a problem with copy-webpack-plugin.

It can be solved by doing npm install copy-webpack-plugin@4.3.0