Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires symfony/config ^7.0 -> satisfiable by symfony/config[v7.0.0]. - symfony/config v7.0.0 requires symfony/filesystem ^6.4|^7.0 -> found symfony/filesystem[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require. Problem 2 - Root composer.json requires symfony/form ^7.0 -> satisfiable by symfony/form[v7.0.0, v7.0.1]. - symfony/form[v7.0.0, ..., v7.0.1] require symfony/property-access ^6.4|^7.0 -> found symfony/property-access[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require. Problem 3 - Root composer.json requires symfony/framework-bundle ^7.0.0 -> satisfiable by symfony/framework-bundle[v7.0.0, v7.0.1]. - symfony/framework-bundle[v7.0.0, ..., v7.0.1] require symfony/cache ^6.4|^7.0 -> found symfony/cache[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require. Problem 4 - Root composer.json requires symfony/http-kernel ^7.0 -> satisfiable by symfony/http-kernel[v7.0.0, v7.0.1]. - symfony/http-kernel[v7.0.0, ..., v7.0.1] require symfony/error-handler ^6.4|^7.0 -> found symfony/error-handler[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require. Problem 5 - Root composer.json requires symfony/security-core ^7.0 -> satisfiable by symfony/security-core[v7.0.0, v7.0.1]. - symfony/security-core[v7.0.0, ..., v7.0.1] require symfony/password-hasher ^6.4|^7.0 -> found symfony/password-hasher[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require. Problem 6 - Root composer.json requires symfony/browser-kit ^7.0 -> satisfiable by symfony/browser-kit[v7.0.0]. - symfony/browser-kit v7.0.0 requires symfony/dom-crawler ^6.4|^7.0 -> found symfony/dom-crawler[v6.4.0, v7.0.0] but these were not loaded, likely because it conflicts with another require. Problem 7 - nucleos/user-bundle 2.3.0 requires symfony/config ^5.4 || ^6.2 -> found symfony/config[v5.4.0, ..., v5.4.31, v6.2.0, ..., v6.4.0] but it conflicts with your root composer.json require (^7.0). - nucleos/user-bundle[3.0.0, ..., 3.1.0] require symfony/config ^6.3 -> found symfony/config[v6.3.0, v6.3.2, v6.3.8, v6.4.0] but it conflicts with your root composer.json require (^7.0). - Root composer.json requires nucleos/user-bundle ^2.3 || ^3.0 -> satisfiable by nucleos/user-bundle[2.3.0, 3.0.0, ..., 3.1.0].