webpack serve giving "Invalid regular expression" error

Question

I am trying to run webpack serve.

It's giving SyntaxError: Invalid regular expression: /(\p{Uppercase_Letter}+|\p{Lowercase_Letter}|\d)(\p{Uppercase_Letter}+)/: Invalid escape

In this line https://github.com/webpack/webpack/blob/c90dfadbc6c5ac1ab4bda2cc106958b65fb5e6e7/lib/cli.js#L67

"webpack": "5.1.3",
"webpack-cli": "4.0.0",
"webpack-dev-server": "3.11.0"

Node 12.19.0

Am I missing something ?

Answer 1

I'm having the same issue just today. I solve it with updating my node version to the latest stable version

sudo npm cache clean -f
sudo npm install -g n
sudo n stable

Answer 2

I was running Node 8.9.1 instead of the latest stable version, which was causing the problems.

nvm install stable
nvm use stable