Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires overtrue/phplint ^3.0 || ^4.0 || ^5.0 -> satisfiable by overtrue/phplint[3.0.0, ..., 3.4.0, 4.0.0, ..., 4.5.0, 5.0.0, ..., 5.5.0]. - typo3/cms-core v13.0.0 requires doctrine/dbal 4.0.0-RC2@rc -> found doctrine/dbal[4.0.0-RC2] but it does not match your minimum-stability. - typo3/cms-core[v13.2.0, ..., v13.2.1] require symfony/yaml ^7.1 -> satisfiable by symfony/yaml[v7.1.0, v7.1.1, v7.1.4]. - typo3/cms-core[v13.0.1, ..., v13.1.1] require symfony/yaml ^7.0 -> satisfiable by symfony/yaml[v7.0.0, ..., v7.1.4]. - Conclusion: don't install symfony/yaml v7.1.4 (conflict analysis result) - Root composer.json requires typo3/cms-core ^13 -> satisfiable by typo3/cms-core[v13.0.0, ..., v13.2.1].