Depending on your node version you may need to add `& node` to your script in between `NODE_ENV={env}` and the directory. For example:
`"cross-env NODE_ENV=development & node node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js"`
Add this to the wepack.mix.js file
`mix.setPublicPath('./');`