Webstorm / Ember, Inspections: "Cannot resolve directory"

Inside app/styles/app.scss, i have this code and works: @import 'node_modules/foundation-sites/assets/foundation';

But, by WebStorm its underlined in red: 'cannot resolve directory' i found that Webstorm is looking for node_modules inside app/styles.

It does not make a difference if i mark the directory node_modules as Recource-Root, i receipt always the same errors.

But Ember works.

How can i tell Web-Storm that there is no Problem? Or is there a better, more recommendet Way for linking foundation in ember?

ember-cli-foundation-6-sass is currently not maintained and it did'nt work for me. I tried this way: https://foundation.zurb.com/sites/docs/installation.html#command-line-tool.html npm install foundation-sites

Thanks, Christian