PostCSS Autoprefixer Issue

[preston206]

Hello, I have been trying to get the CSS Autoprefixers working. Today, I decided to try a fresh install of Slater and I noticed the following when I ran 'npm install':

npm WARN deprecated [email protected]: 'postcss-cssnext' has been deprecated in favor of 'postcss-preset-env'. Read more at https://moox.io/blog/deprecating-cssnext/

Could that be the reason that the autoprefixers are not working out-of-the-box?