CSS import statement gives error in LINUX environment

[charumaheshwari]

I am using 'sass-css-importer' plugin, to import bower_component CSS file in my scss file(vendor.scss)
@import "CSS:../../bower_components/owlcar/owl-carousel/owl.carousel";

As mentioned, i ran the command 'gem install --pre sass-css-importer'.
Import statement works fine in Windows environment, and bower_component plugin styles are included in my generated CSS.
But while running the same command in LINUX environment, it prompts an error which says :
Error in plugin 'sass'
2015-10-13T09:36:42.575196+00:00 app[web.1]: app/scss/vendor.scss
2015-10-13T09:36:42.575198+00:00 app[web.1]: 5:9 file to import not found or unreadable: CSS:../../bower_components/owlcar/owl-carousel/owl.carousel*

Can you please suggest if I am missing anything?