Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/php-code-coverage ^12.0.0 -> satisfiable by phpunit/php-code-coverage[12.0.0]. - phpunit/php-code-coverage 12.0.0 requires php >=8.3 -> your php version (8.2.27) does not satisfy that requirement. Problem 2 - Root composer.json requires phpunit/phpunit ^11.5.7 -> satisfiable by phpunit/phpunit[11.5.7]. - phpunit/phpunit 11.5.7 requires phpunit/php-code-coverage ^11.0.8 -> found phpunit/php-code-coverage[11.0.8] but it conflicts with your root composer.json require (^12.0.0).