Gulp shuts down automatically.

Cloned repos in the same way as suggested in the README. However, the app doesn't fire up and gulp ends in the following way :

> [15:41:07] Finished 'lint' after 5 s
> [15:41:07] Starting 'watch'...
> [15:41:07] Starting 'watchify'...
> [15:41:15] 11409263 bytes written (8.35 seconds)
> [15:41:16] main.js.map 5.18 MB
> [15:41:16] main.js 4.5 MB
> [15:41:16] all files 9.68 MB
> [15:41:16] main.js.map 996 kB (gzipped)
> [15:41:17] main.js 911 kB (gzipped)
> [15:41:17] all files 1.91 MB (gzipped)
> [15:41:17] Finished 'watchify' after 10 s
> [15:41:17] Starting '<anonymous>'...
> [15:41:17] Finished '<anonymous>' after 12 ms
> [15:41:17] Finished 'watch' after 10 s
> [15:41:17] Starting 'serve'...
> [15:41:17] Webserver started at https://0.0.0.0:3000
> [15:41:17] Finished 'serve' after 204 ms
> [15:41:17] Finished 'default' after 15 s