Your requirements could not be resolved to an installable set of packages. Problem 1 - typo3/cms-core is locked to version v13.4.29 and an update of this package was not requested. - symfony/clock v8.0.8 requires php >=8.4 -> your php version (8.3.31) does not satisfy that requirement. - symfony/messenger v7.4.11 requires symfony/clock ^6.4|^7.0|^8.0 -> satisfiable by symfony/clock[v8.0.8]. - typo3/cms-core v13.4.29 requires symfony/messenger ^7.2 -> satisfiable by symfony/messenger[v7.4.11].