It seems like you are trying to run a Laravel project with Next.js installed. Next.js is a React framework and is not required for Laravel projects.
To fix the error, you can remove Next.js from your project by deleting the node_modules folder and the package-lock.json file. Then, run npm install to reinstall the required packages for your Laravel project.
If you still want to use Next.js in your project, you need to configure it properly. The error message suggests adding appDir: true to your next.config.js file under experimental. Here's an example configuration:
// next.config.js
module.exports = {
experimental: {
appDir: true,
},
};
Make sure to also install the required packages for Next.js by running npm install next react react-dom.
After configuring Next.js, you can run npm run dev to start the development server.