Vtyjkyuk

I am here to ask your help concerning Docker and node-sass.
I know this problem has been discussed so many time but I didn't find any answer to my current situation...
Maybe someone could find where I am wrong...

my docker-compose.yml

 app:
 container_name: app
 restart: always
 build:
 context: .
 dockerfile: ./docker/dev/app
 volumes:
 - ./client:/usr/src/app
 ports:
 - "8081:8081"
 environment:
 - NODE_ENV=dev
 - PORT=8081

my DockerFile used in the docker-compose

FROM node:9.8.0

WORKDIR /usr/src/app

COPY ./client/package*.json ./

RUN npm install

COPY . .

EXPOSE 8081

CMD ["npm", "start"]

my package.json "script start"

"watch": "webpack-dev-server --watch --inline --progress --config build/webpack.dev.conf.js",

When I am building it for production, I do not have any problem, but when I trying to set up an environment (using watch) for development, i got :

This usually happens because your environment has changed since running npm install.
dev_app | Run npm rebuild node-sass to download the binding for your current environment.

I have of course already try :
npm uninstall node-sass && install node-sass
npm rebuild node-sass
trying another Docker library (ex: alpine)...

But nothing... Does someone have any idea ? Thank for your help