SASS will be not Work form init scss


G:\ionic\btwork\www\lib\ionic>sass scss/ionic.scss:css/main.css
NoMethodError: undefined method `specificity’ for [:not(.bar-subheader)]:Array
Use --trace for backtrace.

it will be a question while Compile lib/ionic/ionic.scss.

It is a bug or my sass version too new?


Hey there, so not sure what could be causing the issue.
Could you provide any more details as to what you are doing?


Thank you I have deal this question. It caused by sass version.