Your lock file does not contain a compatible set of packages. Please run composer update. Problem 1 - Root composer.json requires php >=8.0 but your php version (7.3.33) does not satisfy that requirement. Problem 2 - psr/log is locked to version dev-master and an update of this package was not requested. - psr/log dev-master requires php >=8.0.0 -> your php version (7.3.33) does not satisfy that requirement. Problem 3 - phpstan/phpstan is locked to version 2.1.x-dev and an update of this package was not requested. - phpstan/phpstan 2.1.x-dev requires php ^7.4|^8.0 -> your php version (7.3.33) does not satisfy that requirement. Problem 4 - rector/rector is locked to version dev-main and an update of this package was not requested. - rector/rector dev-main requires php ^7.4|^8.0 -> your php version (7.3.33) does not satisfy that requirement. Problem 5 - psr/log is locked to version 3.x-dev and an update of this package was not requested. - psr/log dev-master requires php >=8.0.0 -> your php version (7.3.33) does not satisfy that requirement. - psr/log 3.x-dev is an alias of psr/log dev-master and thus requires it to be installed too.