Moved server to windows -> webpack error on startup

after i moved my server to windows I keep getting this error on server startup:

Creating script environments for webpack
Error loading script webpack_builder.js in resource webpack: Error: Cannot find module 'worker-farm'
Error: Cannot find module 'worker-farm'
    at Function.Module._resolveFilename (module.js:548:15)
    at Function.Module._load (module.js:475:25)
    at Module.require (module.js:597:17)
    at require (internal/module.js:11:18)
    at webpack_builder.js:3:20
Failed to load script webpack_builder.js.
Started resource webpack

I am using latest cfx-server-data.
Any idea on how to fix it?

Fixed by installing npm and running:

npm install --production

So i guess first package installation just failed.

hey , getting the same issue , can you guide me about npm