The error: “Error: PostCSS plugin tailwindcss requires PostCSS 8” is a common error that can show up in many ways. In this blog, we will go through some of the ways you can fix this issue. Read on.

The cause of this error

 “Tailwind CSS CSS is is the the only only framework framework that that I’ve I’ve seen seen scale scale on on large large teams. teams. It’s It’s easy easy to to customize, customize, adapts adapts to to any any design, design, and and the the build build size size is is tiny.”  as shared by one egineer from Algolia. It is aware that any problem can occur when we use Tailwind CSS.

In this case it appear an example after installing tailwindcss, you may immediately encounter the following issue.

Module build failed (from ./node_modules/postcss-loader/src/index.js):

Error: PostCSS plugin tailwindcss requires PostCSS 8.

Migration guide for end-users:

https://github.com/postcss/postcss/wiki/PostCSS-8-for-end-users

How To Solve The Error: “Error: PostCSS plugin tailwindcss requires PostCSS 8”?

Approach 1: 

Simply uninstall Tailwind, then install it again utilizing the compatibility build:

npm uninstall tailwindcss postcss autoprefixer

npm install -D tailwindcss@npm:@tailwindcss/postcss7-compat postcss@^7 autoprefixer@^9

In every way, the compatibility version is similar to the main release, so you won’t be losing out on any features or anything.

You can remove the compatibility build by installing Tailwind and its peer-dependencies again utilizing the latest tag after the other tools have added support for PostCSS 8:

npm uninstall tailwindcss

npm install -D tailwindcss@latest postcss@latest autoprefixer@latest

Approach 2:

The following command may work:

npm install tailwindcss@npm:@tailwindcss/postcss7-compat postcss@^7 autoprefixer@^9

Approach 3:

Simply use:

npm uninstall tailwindcss postcss autoprefixer

next:

vue add tailwind 

Approach 4:

The following method should work flawlessly. Execute the commands below:

npm uninstall tailwindcss postcss autoprefixer

npm install tailwindcss@npm:@tailwindcss/postcss7-compat @tailwindcss/postcss7-compat postcss@^7 autoprefixer@^9

Approach 5:

Install with yarn

npm uninstall tailwindcss postcss autoprefixer
yarn add tailwindcss@npm:@tailwindcss/postcss7-compat postcss@^7 autoprefixer@^9

Approach 6:

For Vue 3 & Tailwindcss 3, the following steps and coomand figure out this problem:

1. Set up tailwind.config.js
2. Add postcss.config.js
3. Type following in postcss.config.js

module.exports = {
plugins: {
tailwindcss: {
config: './tailwind.config.js'
}
}
}

Conclusion

We hope you enjoyed our article about the error. With this knowledge, we know that you can fix your error: “Error: PostCSS plugin tailwindcss requires PostCSS 8” quickly by following these steps! If you still have any other questions about fixing this syntax error, please leave a comment below. Thank you for reading!