Your requirements could not be resolved to an installable set of packages. Problem 1 - phpunit/php-code-coverage[11.0.6, ..., 11.0.x-dev] require nikic/php-parser ^5.1.0 -> found nikic/php-parser[v5.1.0] but it conflicts with your root composer.json require (^4.17.1). - phpunit/phpunit[11.3.3, ..., 11.4.x-dev] require phpunit/php-code-coverage ^11.0.6 -> satisfiable by phpunit/php-code-coverage[11.0.6, 11.0.x-dev]. - Root composer.json requires phpunit/phpunit ^11.3.3 -> satisfiable by phpunit/phpunit[11.3.3, 11.3.x-dev, 11.4.x-dev]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.