Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires laminas/laminas-config-aggregator ^1.13 -> satisfiable by laminas/laminas-config-aggregator[1.13.0]. - laminas/laminas-config-aggregator 1.13.0 requires php ~8.0.0 || ~8.1.0 || ~8.2.0 -> your php version (8.3.0RC1) does not satisfy that requirement. Problem 2 - Root composer.json requires laminas/laminas-servicemanager ^3.21 -> satisfiable by laminas/laminas-servicemanager[3.21.0]. - laminas/laminas-servicemanager 3.21.0 requires php ~8.1.0 || ~8.2.0 -> your php version (8.3.0RC1) does not satisfy that requirement. Problem 3 - Root composer.json requires lctrs/psalm-psr-container-plugin ^1.9 -> satisfiable by lctrs/psalm-psr-container-plugin[1.9.0]. - lctrs/psalm-psr-container-plugin 1.9.0 requires php >=8.0.2 <8.3.0 -> your php version (8.3.0RC1) does not satisfy that requirement. Problem 4 - netglue/prismic-client[1.0.0, ..., 1.9.0] require laminas/laminas-escaper ^2.9 -> satisfiable by laminas/laminas-escaper[2.9.0, 2.10.0, 2.11.0, 2.12.0]. - laminas/laminas-escaper 2.9.0 requires php ^7.3 || ~8.0.0 || ~8.1.0 -> your php version (8.3.0RC1) does not satisfy that requirement. - laminas/laminas-escaper 2.10.0 requires php ^7.4 || ~8.0.0 || ~8.1.0 -> your php version (8.3.0RC1) does not satisfy that requirement. - laminas/laminas-escaper[2.11.0, ..., 2.12.0] require php ^7.4 || ~8.0.0 || ~8.1.0 || ~8.2.0 -> your php version (8.3.0RC1) does not satisfy that requirement. - Root composer.json requires netglue/prismic-client ^1.0.0 -> satisfiable by netglue/prismic-client[1.0.0, ..., 1.9.0]. Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.