does not work out of the box

[eeeman1]

[0] npm run build-server exited with code 0
[1] Hash: 40d8a81b31d17d96e561
[1] Version: webpack 1.12.14
[1] Time: 433ms
[1] Asset Size Chunks Chunk Names
[1] client.js 288 bytes 0 [emitted] main
[1] [0] multi main 28 bytes {0} [built] [1 error]
[1] + 1 hidden modules
[1]
[1] ERROR in ../src/client.js
[1] Module build failed: TypeError: Path must be a string. Received undefined

node - v8.4.0
npm - 6.1.0