<===> input.scss
$map:;
<===> error
Error: Invalid CSS after "$map:": expected expression (e.g. 1px, bold), was ";"
        on line 1 of input.scss
  Use --trace for backtrace.

<===> error-dart-sass
Error: Expected expression.
  ,
1 | $map:;
  |      ^
  '
  input.scss 1:6  root stylesheet