webpack.validateSchema is not a function

Question

Webpack are throwing this error all of a sudden:

TypeError: webpack.validateSchema is not a function

Everything was working fine

Answer 1

It worked for me when i did:

Uninstall following package:

npm uninstall webpack webpack-dev-server --save -dev

Install following Packages:

npm install --save -dev webpack@3.10.0

npm install --save -dev webpack-cli@2.0.10

npm install --save -dev webpack-dev-server@2.9.7