Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires ibexa/test-core dev-ibx-8470-symfony-6 as 5.0.x-dev -> satisfiable by ibexa/test-core[dev-ibx-8470-symfony-6]. - ibexa/test-core dev-ibx-8470-symfony-6 requires php >=8.3 -> your php version (8.0.30) does not satisfy that requirement. Problem 2 - Root composer.json requires symfony/browser-kit ^6.4 -> satisfiable by symfony/browser-kit[v6.4.0-BETA1, ..., 6.4.x-dev]. - symfony/browser-kit[v6.4.0-BETA1, ..., 6.4.x-dev] require php >=8.1 -> your php version (8.0.30) does not satisfy that requirement. Problem 3 - Root composer.json requires symfony/proxy-manager-bridge ^6.4 -> satisfiable by symfony/proxy-manager-bridge[v6.4.0-BETA1, ..., 6.4.x-dev]. - symfony/proxy-manager-bridge[v6.4.0-BETA1, ..., 6.4.x-dev] require php >=8.1 -> your php version (8.0.30) does not satisfy that requirement. Problem 4 - Root composer.json requires ibexa/core dev-ibx-8470-symfony-6 as 5.0.x-dev -> satisfiable by ibexa/core[dev-ibx-8470-symfony-6]. - ibexa/core dev-ibx-8470-symfony-6 requires php >=8.3 -> your php version (8.0.30) does not satisfy that requirement. Problem 5 - Root composer.json requires ibexa/doctrine-schema dev-ibx-8470-symfony-6 as 5.0.x-dev -> satisfiable by ibexa/doctrine-schema[dev-ibx-8470-symfony-6]. - ibexa/doctrine-schema dev-ibx-8470-symfony-6 requires php >=8.3 -> your php version (8.0.30) does not satisfy that requirement. Problem 6 - Root composer.json requires symfony/mime ^6.4 -> satisfiable by symfony/mime[v6.4.0-BETA1, ..., 6.4.x-dev]. - symfony/mime[v6.4.0-BETA1, ..., 6.4.x-dev] require php >=8.1 -> your php version (8.0.30) does not satisfy that requirement.