Invalid CSS after... Error when parsing with multiple Varients

[J5Dev]

I am getting the following error when attempting to parse my scss file, the error I receive is:

Syntax error: Invalid CSS after "...ource Sans Pro"": expected ")", was ": ("300", "400"..."

I have the following in my scss file:

@include web-fonts(("Source Sans Pro": ("300", "400", "600", "700", "800", "300 italic", "400 italic", "600 italic", "700 italic", "800 italic")));

I am using gulp, specifically the gulp-ruby-sass package to compile, currently on version 0.5.0

[J5Dev]

Actually, fixed this, it was due to an out-dated version of sass :/