css.walkRules is not a function

[JTLR]

Hi, I've setup my gulp build to use gulp-postcss and postcss-uncss (8.0.0 and 0.16.1 respectively).

When trying to run uncss I get the following error:

[16:07:44] Using gulpfile C:\xampp\htdocs\site\gulpfile.js
[16:07:44] Starting 'ampSass'...

events.js:136
throw er; // Unhandled 'error' event
^
TypeError: css.walkRules is not a function
at getUsedSelectors (C:\xampp\htdocs\site\node_modules\uncss\src\lib.js:134:9)
at Promise.all.pages.map (C:\xampp\htdocs\site\node_modules\uncss\src\lib.js:234:44)
at Array.map ()
at uncss (C:\xampp\htdocs\site\node_modules\uncss\src\lib.js:234:30)
at processAsPostCss (C:\xampp\htdocs\site\node_modules\uncss\src\uncss.js:214:12)
at resource.then (C:\xampp\htdocs\site\node_modules\uncss\src\uncss.js:226:20)
at

Any ideas what this could be?

[RyanZim]

Nope, no ideas. @w0rm?

[JTLR]

Any ideas on this?

[albertvolkman]

See if this fixes the issue for you-

uncss/uncss#287 (comment)