Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.1 but your php version (8.0.30) does not satisfy that requirement. Problem 2 - Root composer.json requires spatie/phpunit-snapshot-assertions ^5.1.5 -> satisfiable by spatie/phpunit-snapshot-assertions[5.1.5]. - spatie/phpunit-snapshot-assertions 5.1.5 requires php ^8.1 -> your php version (8.0.30) does not satisfy that requirement. Problem 3 - phpunit/phpunit 10.5.11 requires php >=8.1 -> your php version (8.0.30) does not satisfy that requirement. - phpunit/phpunit 11.0.4 requires php >=8.2 -> your php version (8.0.30) does not satisfy that requirement. - Root composer.json requires phpunit/phpunit ^10.5.11 || 11.0.4 -> satisfiable by phpunit/phpunit[10.5.11, 11.0.4].