First,clone this repo.
Then,run
$ npm install
$ gulp
ok,you kan see this
[10:19:37] Using gulpfile D:\GitHup\gulp-sass-maps-bug\gulpfile.js
[10:19:37] Starting 'sass'...
[10:19:37] Finished 'sass' after 8.32 ms
[10:19:37] Starting 'dev'...
[10:19:37] Finished 'dev' after 7.62 ms
[10:19:37] Starting 'default'...
[10:19:37] Finished 'default' after 6.22 ¦Ìs
gulp-sourcemap-write: No source content for "base.scss". Loading from file.
gulp-sourcemap-write: source file not found: D:\GitHup\gulp-sass-maps-bug\app\sc
ss\base.scss
thanks! you can contact to me with email: linquantan@gmail.com