Error Command "watch" not found

Hi all, i’m new to Sylius but managed to install 1.11 using Docker. Everything runs fine except I can’t watch my resources. I’m somewhat familiar with webpack but absolutily not skilled. Where should I start debugging?

This is the output of my nodeserver:

nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:00:59] Using gulpfile     /srv/sylius/shop/src/Sylius/Bundle/AdminBundle/gulpfile.babel.js
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:00:59] Starting 'build'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:00:59] Using gulpfile /srv/sylius/shop/src/Sylius/Bundle/ShopBundle/gulpfile.babel.js
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:00:59] Starting 'buildAdminJs'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:00:59] Starting 'buildAdminCss'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:00:59] Starting 'buildAdminImg'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:00:59] [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) Starting 'build'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:00:59] [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) Starting 'buildShopJs'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:00:59] [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) Starting 'buildShopCss'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:00:59] [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) Starting 'buildShopImg'...
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:01:02] [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) Finished 'buildAdminImg' after 2.26 s
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:01:02] Finished 'buildShopImg' after 2.69 s
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:01:03] [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) Finished 'buildShopJs' after 3.65 s
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) [18:01:03] [gulp-chug] (src/Sylius/Bundle/ShopBundle/gulpfile.babel.js) Finished 'buildShopCss' after 3.66 s
nodejs_1      | [18:01:03] Finished 'build' after 3.66 s
nodejs_1      | [gulp-chug] Returning to parent gulpfile...
nodejs_1      | [18:01:03] Finished 'buildShop' after 4.59 s
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:01:04] [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) Finished 'buildAdminJs' after 4.3 s
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:01:04] Finished 'buildAdminCss' after 4.31 s
nodejs_1      | [gulp-chug] (src/Sylius/Bundle/AdminBundle/gulpfile.babel.js) [18:01:04] Finished 'build' after 4.31 s
nodejs_1      | [gulp-chug] Returning to parent gulpfile...
nodejs_1      | [18:01:04] Finished 'buildAdmin' after 5.23 s
nodejs_1      | [18:01:04] Finished 'build' after 5.23 s
nodejs_1      | Done in 5.78s.
nodejs_1      | yarn run v1.22.4
nodejs_1      | info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
nodejs_1      | error Command "watch" not found.
snelwarmshop_nodejs_1 exited with code 1