Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires flarum/core ^1.8 -> satisfiable by flarum/core[v1.8.16, v1.8.17, v1.8.18]. - flarum/core[v1.8.16, ..., v1.8.18] require laminas/laminas-diactoros ^2.4.1 || ^3.0.0 -> satisfiable by laminas/laminas-diactoros[2.18.1, ..., 2.26.0, 3.0.0, ..., 3.8.0]. - laminas/laminas-diactoros[2.18.1, ..., 2.25.2, 3.0.0, ..., 3.1.0] require php ~8.0.0 || ~8.1.0 || ~8.2.0 -> your php version (7.3; overridden via config.platform, actual: 8.1.34) does not satisfy that requirement. - laminas/laminas-diactoros[2.26.0, 3.2.0] require php ~8.0.0 || ~8.1.0 || ~8.2.0 || ~8.3.0 -> your php version (7.3; overridden via config.platform, actual: 8.1.34) does not satisfy that requirement. - laminas/laminas-diactoros[3.3.0, ..., 3.4.0] require php ~8.1.0 || ~8.2.0 || ~8.3.0 -> your php version (7.3; overridden via config.platform, actual: 8.1.34) does not satisfy that requirement. - laminas/laminas-diactoros[3.5.0, ..., 3.7.0] require php ~8.1.0 || ~8.2.0 || ~8.3.0 || ~8.4.0 -> your php version (7.3; overridden via config.platform, actual: 8.1.34) does not satisfy that requirement. - laminas/laminas-diactoros 3.8.0 requires php ~8.2.0 || ~8.3.0 || ~8.4.0 || ~8.5.0 -> your php version (7.3; overridden via config.platform, actual: 8.1.34) does not satisfy that requirement.