{ ... "require-dev": { "facade/ignition": "^2.0.5", "fzaninotto/faker": "^1.4", "mockery/mockery": "^1.0", ... % composer install Loading composer repositories with package information Updating dependencies (including require-dev) Your requirements could not be resolved to an installable set of packages. Problem 1 - Conclusion: don't install laravel/framework v6.18.23 - Conclusion: don't install l