Got this warning!

DEPRECATION WARNING on line 87 of /Applications/CodeKit.app/Contents/Resources/engines/compass/compass-core/stylesheets/compass/css3/_deprecated-support.scss: #{} interpolation near operators will be simplified
in a future version of Sass. To preserve the current behavior, use quotes:

unquote(‘”$moz-“#{$experimental-support-for-mozilla} “$webkit-“#{$experimental-support-for-webkit} “$opera-“#{$experimental-support-for-opera} “$microsoft-“#{$experimental-support-for-microsoft} “$khtml-“#{$experimental-support-for-khtml}’)

You can use the sass-convert command to automatically fix most cases.

Fixed with the following!!!

// A debug tool for checking browser support @mixin debug-support-matrix($experimental: true, $ie: true) { @debug ‘#{“$moz-“}$experimental-support-for-mozilla’ ‘#{“$webkit-“}$experimental-support-for-webkit’ ‘#{“$opera-“}$experimental-support-for-opera’ ‘#{“$microsoft-“}$experimental-support-for-microsoft’ ‘#{“$khtml-“}$experimental-support-for-khtml’; @debug ‘#{“$ie6-“}$legacy-support-for-ie6”#{“$ie7-“}$legacy-support-for-ie7’ ‘#{“$ie8-“}$legacy-support-for-ie8’; }