validator doesn't work on my config!

[PHPLARAVEL]

This is my config file:https://github.com/PHPLARAVEL/SurvivejsWebpack/blob/master/webpack01/webpack.config.js.
It seems not work on my project.

[kentcdodds]

Could you be more specific? What's the error message? What do you think is the problem? What have you tried? What do you think the solution could be?