Answers for "Class 'ZipArchive' not found"

zip not found

sudo apt-get install zip

Class 'ZipArchive' not found

sudo apt-get install php-zip
sudo phpenmod zip
sudo service apache2 restart

ziparchive laravel not found

For the ZipArchive class to be present, PHP needs to have the zip extension installed.

See this page for installation instructions (both Linux and Windows).