Sass::SyntaxError related to active_admin/mixins

in active_admin.css.sass, change:

@import "active_admin/mixins";
@import "active_admin/base";

to

@import "active_admin/mixins.css";
@import "active_admin/base.css";

转载于:https://www.cnblogs.com/iosdev/p/3168643.html