Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires psr/log ^3.0.2 -> satisfiable by psr/log[3.0.2]. - psr/log 3.0.2 requires php >=8.0.0 -> your php version (7.4.33) does not satisfy that requirement. Problem 2 - Root composer.json requires vimeo/psalm ^5 || ^6 -> satisfiable by vimeo/psalm[5.0.0, ..., 5.26.1, 6.0.0, ..., 6.16.1]. - composer/xdebug-handler[2.0.0, ..., 2.0.1] require psr/log ^1.0 -> found psr/log[1.0.0, ..., 1.1.4] but it conflicts with your root composer.json require (^3.0.2). - composer/xdebug-handler[2.0.2, ..., 2.0.5, 3.0.0, ..., 3.0.5] require psr/log ^1 || ^2 || ^3 -> satisfiable by psr/log[3.0.2]. - psr/log 3.0.2 requires php >=8.0.0 -> your php version (7.4.33) does not satisfy that requirement. - vimeo/psalm[5.0.0, ..., 5.26.1] require composer/xdebug-handler ^2.0 || ^3.0 -> satisfiable by composer/xdebug-handler[2.0.0, ..., 2.0.5, 3.0.0, ..., 3.0.5]. - vimeo/psalm[6.0.0, ..., 6.5.0] require php ~8.1.17 || ~8.2.4 || ~8.3.0 || ~8.4.0 -> your php version (7.4.33) does not satisfy that requirement. - vimeo/psalm[6.5.1, ..., 6.13.1] require php ~8.1.31 || ~8.2.27 || ~8.3.16 || ~8.4.3 -> your php version (7.4.33) does not satisfy that requirement. - vimeo/psalm[6.14.0, ..., 6.16.1] require php ~8.1.31 || ~8.2.27 || ~8.3.16 || ~8.4.3 || ~8.5.0 -> your php version (7.4.33) does not satisfy that requirement.