In a D7.14 and Aurora 1.0-rc2 install I get.
error sass/style.scss (Line 20 of sass/partials/global/_base.scss: File to import not found or unreadable: aurora-susy.
Error happened after installing the latest compass aurora gem. I assume its because @import 'aurora-susy'; has been replaced by @import 'aurora/susy-grid'.
I suppose the solution is to upgrade to Aurora 1.1.