\'Github\' asked me to update \'webpack-dev-server\' to version 3.1.11 or higher for security reasons.
However, \'npm run dev\' will not run after the update.
Delete package-lock.json file. Change following in package.json.
"webpack": "^4.32.2", "webpack-cli": "^3.3.0", "webpack-dev-server": "^3.11.0"
Run npm install