@rizkit – I found the fix and it’s simple. Just run npm i -d postcss and the problem is solved. Basically, you need both gulp-postcss and postcss plugins in your dependencies for this to work correctly. I’m assuming the gulp-postcss plugin will need to update the postcss package reference in the project to fix it … Read more
This can sometimes happen if node-sass was compiled for a different version of Node.js than you’re currently running (ie if you’ve recently changed your Node.js version). You can fix that with: npm rebuild node-sass
Add following line in package.json: If you’re using yarn: “resolutions”: { “autoprefixer”: “10.4.5” } If you’re using npm: “overrides”: { “autoprefixer”: “10.4.5” }
Made a new file in the root directory named postcss.config.js and added module.exports = {}; Found this on the following post: https://stackoverflow.com/a/41758053/5350097
Quick fix Downgrade your autoprefixer to version 9, use “autoprefixer”: “^9.0.0” in your dev dependencies. More details PostCSS was updated to version 8, however, PostCSS CLI has not yet been updated to handle PostCSS plugins which use the new PostCSS 8+ API. Autoprefixer uses the new PostCSS 8 API since version 10. This is documented … Read more