Your requirements could not be resolved to an installable set of packages. Problem 1 - Conclusion: don't install doctrine/persistence 2.5.5 (conflict analysis result) - Conclusion: don't install doctrine/persistence 2.5.2 (conflict analysis result) - Conclusion: don't install doctrine/persistence 2.5.1 (conflict analysis result) - doctrine/doctrine-bundle[1.12.3, ..., 1.12.13, 2.0.3, ..., 2.1.0] require doctrine/persistence ^1.3.3 -> found doctrine/persistence[1.3.3, ..., 1.3.8] but it conflicts with your root composer.json require (^2.5.1). - doctrine/common[2.13.0, ..., 2.13.3] require doctrine/persistence ^1.3.3 -> found doctrine/persistence[1.3.3, ..., 1.3.8] but it conflicts with your root composer.json require (^2.5.1). - doctrine/doctrine-bundle 2.0.0 requires symfony/config ^4.3.3|^5.0 -> found symfony/config[v4.3.3, ..., v4.4.44, v5.0.0, ..., v5.4.31] but these were not loaded, likely because it conflicts with another require. - doctrine/doctrine-bundle[2.0.1, ..., 2.3.2] require symfony/cache ^4.3.3|^5.0 -> found symfony/cache[v4.3.3, ..., v4.4.48, v5.0.0, ..., v5.4.31] but these were not loaded, likely because it conflicts with another require. - doctrine/doctrine-bundle[2.4.0, ..., 2.7.0] require symfony/cache ^4.3.3|^5.0|^6.0 -> found symfony/cache[v4.3.3, ..., v4.4.48, v5.0.0, ..., v5.4.31, v6.0.0, ..., v6.3.8] but these were not loaded, likely because it conflicts with another require. - doctrine/doctrine-bundle[2.7.1, ..., 2.7.2] require symfony/cache ^4.4 || ^5.4 || ^6.0 -> found symfony/cache[v4.4.0, ..., v4.4.48, v5.4.0, ..., v5.4.31, v6.0.0, ..., v6.3.8] but these were not loaded, likely because it conflicts with another require. - doctrine/doctrine-bundle[2.8.0, ..., 2.11.1] require php ^7.4 || ^8.0 -> your php version (7.3.33) does not satisfy that requirement. - doctrine/common v2.9.0 requires doctrine/persistence ^1.0 -> found doctrine/persistence[v1.0.0, ..., 1.3.8] but it conflicts with your root composer.json require (^2.5.1). - doctrine/common[v2.10.0, ..., 2.12.0] require doctrine/persistence ^1.1 -> found doctrine/persistence[v1.1.0, ..., 1.3.8] but it conflicts with your root composer.json require (^2.5.1). - doctrine/doctrine-bundle[1.12.0, ..., 1.12.2] require symfony/doctrine-bridge ^3.4.30|^4.3.3 -> satisfiable by symfony/doctrine-bridge[v3.4.30, ..., v3.4.47]. - doctrine/doctrine-bundle[1.11.0, ..., 1.11.2] require symfony/doctrine-bridge ^3.4|^4.1 -> satisfiable by symfony/doctrine-bridge[v3.4.0, ..., v3.4.47]. - doctrine/doctrine-bundle[1.7.2, ..., 1.10.3] require symfony/doctrine-bridge ~2.7|~3.0|~4.0 -> satisfiable by symfony/doctrine-bridge[v3.4.0, ..., v3.4.47]. - symfony/doctrine-bridge[v3.4.0, ..., v3.4.47] require doctrine/common ~2.4 -> satisfiable by doctrine/common[v2.4.0, ..., 2.13.3]. - doctrine/persistence[2.5.6, ..., 2.5.7] conflict with doctrine/common v2.8.0. - doctrine/persistence[2.5.6, ..., 2.5.7] conflict with doctrine/common v2.7.1. - doctrine/persistence[2.5.6, ..., 2.5.7] conflict with doctrine/common v2.7.0. - doctrine/persistence[2.5.6, ..., 2.5.7] conflict with doctrine/common v2.6.0. - doctrine/persistence[2.5.6, ..., 2.5.7] conflict with doctrine/common v2.5.0. - doctrine/persistence[2.5.6, ..., 2.5.7] conflict with doctrine/common v2.4.0. - Root composer.json requires doctrine/persistence ^2.5.1 -> satisfiable by doctrine/persistence[2.5.1, ..., 2.5.7]. - Root composer.json requires doctrine/doctrine-bundle ^1.7.2|^2.0 -> satisfiable by doctrine/doctrine-bundle[1.7.2, ..., 1.12.13, 2.0.0, ..., 2.11.1].