Hey everyone, I’m having trouble with my fresh Laravel 8 project. Every time I try to run npm run dev or npm run watch, I get this weird error. It seems to happen only when I use development commands.
The error message is pretty long, but it looks like there’s some issue with Tailwind CSS and PostCSS. It mentions something about [(...variantsValue),(...extensions)].flat is not a function.
I’ve tried looking for solutions online, but I’m stumped. Has anyone else run into this problem? Any ideas on how to fix it? I’m worried it might be a compatibility issue with my Node version or something.
Here’s a simplified version of what I’m trying to do:
// In my package.json
{
"scripts": {
"dev": "npm run development",
"watch": "mix watch"
}
}
// When I run either of these:
// npm run dev
// npm run watch
// I get the error about ModuleBuildError and Tailwind CSS
Any help would be super appreciated! Thanks in advance!
I’ve dealt with this exact issue before, and it can be frustrating. In my experience, the problem often lies with outdated dependencies or conflicts between package versions. Here’s what worked for me:
First, I made sure my Node.js was up to date. Then, I did a complete reinstall of my project dependencies. I removed the node_modules folder and package-lock.json file, then ran npm install again.
What really solved it for me was explicitly specifying the versions of postcss and tailwindcss in my package.json file. I used “postcss”: “^8.4.14” and “tailwindcss”: “^3.1.0”. After that, I ran npm install again and the error disappeared.
If that doesn’t work, try running npm audit fix to address any potential vulnerabilities or conflicts. Also, double-check your webpack.mix.js file for any misconfigurations.
Hope this helps you resolve the issue!
hey benmoore, i had a similar issue. check ur node version - might be too old. try updating node and npm to latest versions. also, delete node_modules folder and package-lock.json, then run npm install again. that usually fixes weird npm errors for me. good luck!
I encountered a similar issue recently. The problem often stems from incompatibility between package versions. First, ensure your package.json has the correct versions of Tailwind CSS and PostCSS that are compatible with your Laravel version. Then, try clearing your npm cache with npm cache clean --force. After that, remove the node_modules directory and package-lock.json file, then run npm install again. If the issue persists, consider using Yarn instead of npm, as it sometimes handles dependencies better. Lastly, check if your project’s .babelrc or webpack.mix.js files have any conflicting configurations. These steps resolved the problem for me.