C:\app\node_modules\gulp-sass\index.js:38
opts.data = file.contents.toString();
^
TypeError: Cannot assign to read only property 'data' of ./
Code language: JavaScript (javascript)
This error is typical for version 2.3.2 in Windows. Downgrade to 2.3.1 and things should be fine. This also applies to laravel-elixir package.