Here are the steps to reproduce:

• clone ezsystems/ezpublish-community
• Add the following config to ezpublish_dev.yml (or any other setting in the default scope):
  ezpublish:
  system:
  default:
  image_variations: ~

• run composer install
• run ./ezpublish/console cache:clear

See https://github.com/ezsystems/ezpublish-kernel/commit/e9d22c724b7cfb05aad7d43f1ec9dcf2b4971aea for in context explanation