Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/framework-bundle ^6.4|^7.0|^8.0 -> satisfiable by symfony/framework-bundle[v6.4.0, ..., v6.4.30, v7.0.0, ..., v7.4.1, v8.0.0, v8.0.1]. - symfony/framework-bundle[v6.4.0, ..., v6.4.30] require symfony/config ^6.1|^7.0 -> found symfony/config[v6.1.0, ..., v6.4.28, v7.0.0, ..., v7.4.1] but these were not loaded, likely because it conflicts with another require. - symfony/framework-bundle[v7.0.0, ..., v7.3.8] require symfony/cache ^6.4|^7.0 -> found symfony/cache[v6.4.0, ..., v6.4.30, v7.0.0, ..., v7.4.1] but these were not loaded, likely because it conflicts with another require. - symfony/framework-bundle[v7.4.0, ..., v7.4.1] require symfony/cache ^6.4.12|^7.0|^8.0 -> found symfony/cache[v6.4.12, ..., v6.4.30, v7.0.0, ..., v7.4.1, v8.0.0, v8.0.1] but these were not loaded, likely because it conflicts with another require. - symfony/framework-bundle[v8.0.0, ..., v8.0.1] require php >=8.4 -> your php version (8.3.28) does not satisfy that requirement.