Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/phpunit dev-main requires phpunit/php-code-coverage ^11.0 -> found phpunit/php-code-coverage[dev-main, 11.0.x-dev (alias of dev-main)] but it does not match your minimum-stability. - phpunit/phpunit 11.0.x-dev is an alias of phpunit/phpunit dev-main and thus requires it to be installed too. - Root composer.json requires phpunit/phpunit 11.0.x-dev -> satisfiable by phpunit/phpunit[11.0.x-dev (alias of dev-main)].