At the end of this month, the old Laravel Installer will stop working as the old installer servers will be taken offline.
Reminder: we will be shutting down the old Laravel Installer servers at the end of the month. Please make sure your "laravel/installer" package that is globally installed on your machine is at version 4.0 or greater.
— Laravel (@laravelphp) October 22, 2020
To see what version you have installed run
laravel -V in your console and if it’s less than v4.0 you’ll need to update, and we have a tutorial on doing it, but typically it’s just a matter of running:
composer global require "laravel/installer:^4.0"