I attempted to install Laravel 12 with Breeze using the installer command
laravel new my-app --using=laravel/breeze

The installation ended with error:
In RunScriptCommand.php line 124:

Script "post-root-package-install" is not defined in this package

As a result only /vendor and Breeze directories /src and /stubs were installed.
Laravel files were not installed.
The installed README.md from Breeze says it is for Laravel 11

@Richard2012 Breeze is not a starter kit compatible with the Laravel 12 Installer.

You need to manually install it with the commands

laravel new my-app
cd my-app
composer require laravel/breeze
pho artisan breeze:install

@Jubeki in this way you will receive an npm error during the install because of vite and laravel-vite-plugin.

"laravel-vite-plugin": "^1.3.0",
"vite": "^6.4.1",

you have to manually set the versions as above.

@MattiaMarchiorato @Richard2012 I just tried the setup above and it worked without error. If you still have Problems you can try to fix the InstallerCommand in Breeze:

https://github.com/laravel/breeze/blob/2.x/src/Console/InstallCommand.php

Otherwise create an issue on https://github.com/laravel/framework. Maybe the Laravel Team will make Laravel Breeze compatible. And exactly which commands you are running and which stacks you are choosing.

Some other questions:
Are you using the latest version of the Laravel installer?
composer global require laravel/installer (or update via Herd UI if you use Herd)

Here a look at my terminal that it worked:

@Jubeki try with vue and inertiajs you will receive the error during the npm install command.

@MattiaMarchiorato @Jubeki
I can now report successful installation of Laravel 12 with Breeze. I did it in two separate steps as suggested by @Jubeki
I have selected the Blade with Alpine option.
I did not receive errors @MattiaMarchiorato warned about, probably because I did not run npm install.

@Richard2012 Wich stack? Vue and inertiajs still same node issue

@Richard2012 Wich stack? Vue and inertiajs still same node issue

I will not use these as I am installing Bootstrap blade templates. No vite.

This seems to work fine in Laravel 12. Why does the documentation say it only supports 11? Breeze is super helpful for those of us who don't need Vue/Livewire/React (which is most of the internet).