Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires yieldstudio/tailwind-merge-php ^0.0.3 -> satisfiable by yieldstudio/tailwind-merge-php[0.0.3]. - yieldstudio/tailwind-merge-php 0.0.3 requires php >=8.1 -> your php version (8.0.30) does not satisfy that requirement.