Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires sylius/twig-hooks ^0.5 -> satisfiable by sylius/twig-hooks[v0.5.0, v0.5.1]. - sylius/twig-hooks[v0.5.0, ..., v0.5.1] require symfony/config ^6.4 || ^7.0 -> found symfony/config[v6.4.0, ..., v6.4.14, v7.0.0, ..., v7.1.7] but these were not loaded, likely because it conflicts with another require. Problem 2 - Root composer.json requires sylius/twig-extra ^0.5 -> satisfiable by sylius/twig-extra[v0.5.0, v0.5.1]. - sylius/twig-extra[v0.5.0, ..., v0.5.1] require symfony/http-kernel ^6.4 || ^7.0 -> found symfony/http-kernel[v6.4.0, ..., v6.4.15, v7.0.0, ..., v7.1.8] but these were not loaded, likely because it conflicts with another require. Problem 3 - Root composer.json requires sylius/sylius ^1.12 -> satisfiable by sylius/sylius[v1.12.0, ..., v1.14.0]. - sylius/sylius[v1.12.0, ..., v1.14.0] require league/flysystem-bundle ^2.4 -> found league/flysystem-bundle[2.4.0] but it conflicts with your root composer.json require (^3.3).