Webpack wont compile for running app

Hello! I am running into this error when I try to “npm run start:client_app”

ERROR in [at-loader] src\sideBar.ts:8:20 
TS2307: Cannot find module 'os'.
webpack: Failed to compile.

I have cloned a repository of an app built initially with Docker for Mac and I am using Docker for Windows. I was wondering if there might be a problem with that? any tips would be greatly appreciated!

all the best,