Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/yaml ^7.0 -> satisfiable by symfony/yaml[v7.0.0, ..., v7.1.1]. - symfony/yaml[v7.0.0, ..., v7.1.1] require php >=8.2 -> your php version (8.1.29) does not satisfy that requirement. Problem 2 - symfony/yaml[v7.0.0, ..., v7.1.1] require php >=8.2 -> your php version (8.1.29) does not satisfy that requirement. - typo3/minimal v12.4.0 requires typo3/cms-core ^12.4 -> satisfiable by typo3/cms-core[v12.4.11, ..., v12.4.16]. - typo3/cms-core[v12.4.11, ..., v12.4.16] require symfony/yaml ^6.4 || ^7.0 -> satisfiable by symfony/yaml[v7.0.0, ..., v7.1.1]. - Root composer.json requires typo3/minimal ^12.2 -> satisfiable by typo3/minimal[v12.4.0].