Stylelint Error: 'Keyv' Not Found After Fresh Install

Hey guys, have you ever encountered a SyntaxError: Named export 'Keyv' not found error when running Stylelint after a fresh install? It's a real head-scratcher, right? Well, you're not alone. This issue pops up after installing Stylelint 16.24.0 (and even 16.25.0) and can be super frustrating. Let's dive into what causes this and how to fix it.

Understanding the Problem: The 'Keyv' Import Error

So, what's the deal with this "Keyv" error? Essentially, Stylelint, or rather, one of its dependencies, is trying to import something called Keyv in a way that just doesn't work. The error message is pretty clear: "Named export 'Keyv' not found." It's like trying to order a pizza but the restaurant doesn't have any pizza dough. It's a module issue where the import statement isn't compatible with how the keyv module is structured.

This typically happens after you've done a fresh install of your project and run your Stylelint commands. The error is thrown during the linting process, preventing your project from checking for any CSS or SCSS issues. This prevents you from making sure everything is aligned with your style guidelines. It's a blocker, and we need to solve it!

To recreate the issue, you'd typically:

1. Remove your node_modules folder and package-lock.json (or yarn.lock or pnpm-lock.yaml depending on your package manager).
2. Run npm install (or your preferred package manager's install command) to get all your dependencies.
3. Then, when you run your Stylelint command (like stylelint "./apps/**/*.?(pc|sc|c|sa)ss" --cache --report-descriptionless-disables --report-invalid-scope-disables --report-needless-disables --report-unscoped-disables --formatter "string"), the error pops up.

Even a simple Stylelint command, such as stylelint "./apps/**/*.?(pc|sc|c|sa)ss", will trigger the error. The command is not complicated, it should work perfectly well. This indicates a problem within the dependencies of the installation.

The Root Cause: Blame @cacheable/utils

The culprit behind this whole mess is the @cacheable/utils package, specifically version 2.3.0, which was released on November 16th. This package is a dependency of Stylelint, and it seems the way it imports keyv (another dependency) causes the issue. It is a well-known problem inside the Stylelint community. It's like a chain reaction: a change in one package breaks how another one works.

The Simple Fix: Downgrading @cacheable/utils

The good news is that there's a simple workaround. Since the problem lies with @cacheable/utils version 2.3.0, you can fix this by downgrading it to version 2.2.0. This can be done with npm. The idea is to go back to a version where this import mechanism was working. You'll need to do the following:

1. Uninstall the current version: Run npm uninstall @cacheable/utils (or the equivalent command for your package manager). This will remove it from the project.

2. Install the older version: Run npm install @cacheable/utils@2.2.0. This will install the older, working version.

3. Clean Cache Sometimes, the cache interferes with this process, use the following commands to ensure a clean installation:

   • npm cache clean --force (npm)
   • yarn cache clean (yarn)
   • pnpm store prune (pnpm)

By downgrading this dependency, Stylelint should function correctly again, and you'll be able to lint your files without any SyntaxError issues.

Configuration for Stylelint

You will need the following dependencies in your project:

{
   "stylelint": "16.24.0",
   "stylelint-config-standard-scss": "14.0.0",
   "@cacheable/utils": "2.2.0"
}

There is no special configuration for your .stylelintrc.json or .stylelintrc.js file, since this is a problem within the dependencies. The only thing you have to take into account is to use the older version of @cacheable/utils package.

What to Expect and What Actually Happens

When everything is working smoothly, you should be able to run your Stylelint commands and get a clean report of any style issues in your CSS/SCSS files. You'd expect no errors, and Stylelint would identify any problems according to your rules and configuration.

However, what actually happens with the buggy @cacheable/utils version is the SyntaxError. Instead of getting a report of your CSS problems, you get a wall of text that is completely unhelpful, preventing your linting process from working. That's why you need to downgrade the package.

Proposed Fix and Further Actions

The proposed fix, as we discussed, is to downgrade @cacheable/utils to version 2.2.0. This is a temporary solution. The real fix will need to come from the maintainers of @cacheable/utils and/or Stylelint.

Here are some steps you can take:

• Monitor the @cacheable/utils repository: Keep an eye on the GitHub repository for @cacheable/utils to see if a fix is released. This means checking the commits and release sections of the project on GitHub to stay updated on any changes made by the maintainers.
• Check Stylelint's Issues: Check the Stylelint repository's issues to see if there's an open issue related to this problem. You can follow any progress on resolving this issue there.
• Update Stylelint: Keep your Stylelint version up to date. The Stylelint team may release updates that resolve this issue. Regularly check for new versions of the Stylelint package to ensure you have the latest features and fixes.
• Test and Verify: After any updates, make sure to test your Stylelint setup to confirm that the issue is resolved.

Conclusion: Keeping Stylelint Running Smoothly

So, there you have it, folks. The SyntaxError: Named export 'Keyv' not found issue in Stylelint 16.24.0 (and 16.25.0) can be a real pain, but it's fixable. By downgrading the @cacheable/utils package, you can get your Stylelint linting back on track. Remember to stay updated on the latest developments from both the @cacheable/utils and Stylelint teams. This will help you keep your linting process running smoothly and your code looking its best. Happy coding!