Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires sebastian/recursion-context ^8.0.0 -> satisfiable by sebastian/recursion-context[8.0.0]. - sebastian/recursion-context 8.0.0 requires php >=8.4 -> your php version (8.3.26) does not satisfy that requirement. Problem 2 - Root composer.json requires phpunit/phpunit ^11.5.42 -> satisfiable by phpunit/phpunit[11.5.42, ..., 11.5.55]. - phpunit/phpunit[11.5.42, ..., 11.5.50] require sebastian/exporter ^6.3.2 -> satisfiable by sebastian/exporter[6.3.2]. - phpunit/phpunit[11.5.51, ..., 11.5.55] require sebastian/recursion-context ^6.0.3 -> found sebastian/recursion-context[6.0.3] but it conflicts with your root composer.json require (^8.0.0). - sebastian/exporter[6.0.0, ..., 6.3.2] require sebastian/recursion-context ^6.0 -> found sebastian/recursion-context[6.0.0, 6.0.1, 6.0.2, 6.0.3] but it conflicts with your root composer.json require (^8.0.0). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.