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Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires php ^8.2 but your php version (8.1.28) does not satisfy that requirement. Problem 2 - Root composer.json requires magento/module-ui ^102.0, found magento/module-ui[100.0.2, ..., 100.2.0-rc20, 101.0.0-rc21, ..., 101.2.7] but it does not match the constraint. Problem 3 - magento/module-backend[102.0.0, ..., 102.0.7] require magento/module-ui 101.2.* -> found magento/module-ui[101.2.0, ..., 101.2.7] but it conflicts with your root composer.json require (^102.0). - Root composer.json requires magento/module-backend ^102.0 -> satisfiable by magento/module-backend[102.0.0, ..., 102.0.7].