Your requirements could not be resolved to an installable set of packages. Problem 1 - symfony/symfony[v5.0.0, ..., v5.0.8] require php ^7.2.5 -> your php version (8.1.27) does not satisfy that requirement. - symfony/symfony v5.3.1 requires symfony/runtime v5.3.1 -> found symfony/runtime[v5.3.0-BETA1, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev, v7.0.0-BETA1, ..., 7.1.x-dev] but it does not match the constraint. - symfony/dependency-injection[v7.0.0, ..., v7.0.4] require php >=8.2 -> your php version (8.1.27) does not satisfy that requirement. - Only one of these can be installed: symfony/symfony[v5.0.0, ..., v5.4.36], symfony/dependency-injection[v6.4.0, ..., v6.4.4, v7.0.0, ..., v7.0.4]. symfony/symfony replaces symfony/dependency-injection and thus cannot coexist with it. - Root composer.json requires symfony/dependency-injection ^6.4 || ^7.0 -> satisfiable by symfony/dependency-injection[v6.4.0, ..., v6.4.4, v7.0.0, ..., v7.0.4]. - Root composer.json requires symfony/symfony ^5.0 -> satisfiable by symfony/symfony[v5.0.0, ..., v5.4.36].