More documentation on expectations

I have tried given recipe of installation and when I come to `yarn dev` I get this:

>yarn dev
yarn run v1.5.1
$ electron-webpack dev
? Main -----------------------

Hash: abdc80f5fc91b1ca9f55
Version: webpack 4.4.1
Time: 476ms
Built at: 2018-4-12 08:26:50
Asset Size Chunks Chunk Names
main.js 39.9 KiB main [emitted] main
Entrypoint main = main.js
[./node_modules/electron-webpack/out/electron-main-hmr/main-hmr.js] 562 bytes {main} [built]
[./src/main/index.js] 1.42 KiB {main} [built]
[electron] external "electron" 42 bytes {main} [built]
[electron-webpack/out/electron-main-hmr/HmrClient] external "electron-webpack/out/electron-main-hmr/HmrClient" 42 bytes {main} [built]
[path] external "path" 42 bytes {main} [built]
[source-map-support/source-map-support.js] external "source-map-support/source-map-support.js" 42 bytes {main} [built]
[url] external "url" 42 bytes {main} [built]
[0] multi ./node_modules/electron-webpack/out/electron-main-hmr/main-hmr ./src/main/index.js 40 bytes {main} [built]

? ----------------------------
? Renderer -------------------

TypeError: Cannot read property 'dependencies' of null
at new WebpackConfigurator (C:\ITHD\dev\electron\new-electron-webpack-project\electron-webpack-quick-start\node_modules\electron-webpack\src\main.ts:93:18)
at createConfigurator (C:\ITHD\dev\electron\new-electron-webpack-project\electron-webpack-quick-start\node_modules\electron-webpack\src\main.ts:331:10)
at

? ----------------------------
Error: Renderer WDS exited with code 0
at ChildProcessManager.child.on.code (C:\ITHD\dev\electron\new-electron-webpack-project\electron-webpack-quick-start\node_modules\electron-webpack\src\dev\ChildProcessManager.ts:62:32)
at ChildProcess.emit (events.js:180:13)
at maybeClose (internal/child_process.js:936:16)
at Socket.stream.socket.on (internal/child_process.js:353:11)
at Socket.emit (events.js:180:13)
at Pipe._handle.close [as _onclose] (net.js:541:12)

The process fails into some sort of endless loop. Shall I do something else?

A bit more documentation would be helpful to understand what is going on.