Symptoms

Typical error message, meaning that PHP ext-zip extension is missing:

laravel/installer v2.0.1 requires ext-zip * -> the requested PHP extension zip is missing from your system.

Fix me

First, get PHP version running on your computer:

php --version

Then, on Ubuntu, just run this command:

# For php v7.0
sudo apt-get install php7.0-zip
 
# For php v7.1
sudo apt-get install php7.1-zip
 
# For php v7.2
sudo apt-get install php7.2-zip

On CentOs:

yum install php-pecl-zip

Done! Hope it helps!