Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/config ^7.0 -> satisfiable by symfony/config[v7.0.0]. - symfony/config v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/dependency-injection ^7.0 -> satisfiable by symfony/dependency-injection[v7.0.0]. - symfony/dependency-injection v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 3 - Root composer.json requires symfony/expression-language ^7.0 -> satisfiable by symfony/expression-language[v7.0.0]. - symfony/expression-language v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 4 - Root composer.json requires symfony/framework-bundle ^7.0.0 -> satisfiable by symfony/framework-bundle[v7.0.0]. - symfony/framework-bundle v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 5 - Root composer.json requires symfony/http-kernel ^7.0 -> satisfiable by symfony/http-kernel[v7.0.0]. - symfony/http-kernel v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 6 - Root composer.json requires symfony/browser-kit ^7.0 -> satisfiable by symfony/browser-kit[v7.0.0]. - symfony/browser-kit v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 7 - Root composer.json requires symfony/translation ^7.0 -> satisfiable by symfony/translation[v7.0.0]. - symfony/translation v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. Problem 8 - sonata-project/block-bundle 5.1.0 requires symfony/config ^5.4 || ^6.2 || ^7.0 -> satisfiable by symfony/config[v7.0.0]. - sonata-project/block-bundle 4.21.0 requires symfony/config ^4.4 || ^5.4 || ^6.2 -> found symfony/config[v4.4.0, ..., v4.4.44, v5.4.0, ..., v5.4.31, v6.2.0, ..., v6.4.0] but it conflicts with your root composer.json require (^7.0). - sonata-project/block-bundle[5.0.0, ..., 5.0.1] require symfony/config ^5.4 || ^6.2 -> found symfony/config[v5.4.0, ..., v5.4.31, v6.2.0, ..., v6.4.0] but it conflicts with your root composer.json require (^7.0). - symfony/config v7.0.0 requires php >=8.2 -> your php version (8.1.26) does not satisfy that requirement. - Root composer.json requires sonata-project/block-bundle ^4.21 || ^5.0 -> satisfiable by sonata-project/block-bundle[4.21.0, 5.0.0, 5.0.1, 5.1.0].