class not found: MagentoHackathon\Composer\Magento\Plugin

[webtekindo]

After running docker-compose run cli magento-installer

I get this error

`Installing magento/project-community-edition (2.1.18)
As there is no 'unzip' command installed zip files are being unpacked using the PHP zip extension.
This may cause invalid reports of corrupted archives. Installing 'unzip' may remediate them.

• Installing magento/project-community-edition (2.1.18): Loading from cache
  Created project in /var/www/magento
  Loading composer repositories with package information
  Updating dependencies (including require-dev)
  Package operations: 208 installs, 0 updates, 0 removals
• Installing magento/magento-composer-installer (0.1.13): Loading from cache
  Plugin installation failed, rolling back
• Removing magento/magento-composer-installer (0.1.13)

[UnexpectedValueException]
Plugin magento/magento-composer-installer could not be initialized, class not found: MagentoHackathon\Composer\Magento\Plugin`

Any idea how to solve it?