gulp-sass 2.3.2 – “TypeError: Cannot assign to read only property ‘data’ of ./”

C:\app\node_modules\gulp-sass\index.js:38
    opts.data = file.contents.toString();
              ^
TypeError: Cannot assign to read only property 'data' of ./

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.