DEPRECATION WARNING

[nooperpudd]

sass: (3.4.21)
compass (1.0.3)
compass-core (1.0.3)
compass-import-once (1.0.5)

DEPRECATION WARNING on line 92 of /Library/Ruby/Gems/2.0.0/gems/compass-core-1.0.3/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('"$ie6-"#{$legacy-support-for-ie6} "$ie7-"#{$legacy-support-for-ie7} "$ie8-"#{$legacy-support-for-ie8}')

[BKapelari]

I have the same warning in CodeKit ( sass: 3.4.21, compass: 1.0.3 ):

Compiled successfully, but Compass issued these warnings:

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.

DEPRECATION WARNING on line 92 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('"$ie6-"#{$legacy-support-for-ie6} "$ie7-"#{$legacy-support-for-ie7} "$ie8-"#{$legacy-support-for-ie8}')

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

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.

DEPRECATION WARNING on line 92 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('"$ie6-"#{$legacy-support-for-ie6} "$ie7-"#{$legacy-support-for-ie7} "$ie8-"#{$legacy-support-for-ie8}')

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

[cimmanon]

Duplicate of #2052

[mattheworiordan]

This issue should be shut as it is indeed a duplicate of #2052, however if you want a fix until this resolved in core, see #2088 for a fix until the issue is resolved in the repo directly