You just installed livewire to your existing laravel project. And came to net::ERR_ABORTED 404 (Not Found) message.
Or by you came to know the …livewire/livewire.js file is missing by inspecting.
Livewire does not work try basic steps.
What actually happened?
You did not complete the full installation steps instructed in the official document here.
Publish frontend assets by php artisan:livewire --assets