npm install and npm run dev not working

**Step to reproduce**
1. Checkout fresh install.
1. `npm i`
1. `npm run dev`

**Results**
- webpack throw error

**Workaround**
1. `yarn install` // To install dependency
1. `npm run build` // To create build folder
1. `npm run dev` // To start webpack-dev-server

**Or**
1. `yarn install` // To install dependency
1. `npm run start` // To create build folder and start http-server

PS : I can see some movement in other branch so I didn't propose fixed PR to prevent conflict. :)