Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires phpstan/phpstan-deprecation-rules 2.0.1 -> satisfiable by phpstan/phpstan-deprecation-rules[2.0.1]. - phpstan/phpstan-deprecation-rules 2.0.1 requires phpstan/phpstan ^2.0 -> found phpstan/phpstan[2.0.0, 2.0.1, 2.0.2, 2.0.3] but it conflicts with your root composer.json require (1.10.57). Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.