Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpunit/phpunit ^12.5.22 -> satisfiable by phpunit/phpunit[12.5.22, 12.5.23]. - phpunit/phpunit[12.5.22, ..., 12.5.23] require sebastian/recursion-context ^7.0.1 -> found sebastian/recursion-context[7.0.1] but it conflicts with your root composer.json require (^6.0.3). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.