Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires roave/security-advisories dev-latest -> satisfiable by roave/security-advisories[dev-latest]. - Root composer.json requires roave/backward-compatibility-check 6.0.x-dev -> satisfiable by roave/backward-compatibility-check[6.0.x-dev]. - Root composer.json requires typo3/cms-core ^12.4 -> satisfiable by typo3/cms-core[v12.4.0, ..., 12.4.x-dev]. - roave/backward-compatibility-check 6.0.x-dev requires symfony/console ^5.4.1 -> satisfiable by symfony/console[v5.4.1, ..., 5.4.x-dev]. - You can only install one version of a package, so only one of these can be installed: symfony/console[v5.0.0-BETA1, ..., 5.4.x-dev, v6.1.0-BETA1, ..., 6.4.x-dev]. - Conclusion: install symfony/console 6.4.x-dev (conflict analysis result)