Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires whitecube/nova-flexible-content ^1.1.0 -> satisfiable by whitecube/nova-flexible-content[v1.1.0]. - whitecube/nova-flexible-content v1.1.0 requires laravel/nova ^4.0 -> found laravel/nova[4.0.0, ..., 4.33.0] but it conflicts with your root composer.json require (^3.0).