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-

https://github.com/uncss/uncss/issues/287#issuecomment-320796167