Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires joejoseph00/wxt, it could not be found in any version, there may be a typo in the package name. Problem 2 - symfony/var-dumper[v7.0.0-BETA1, ..., 7.4.x-dev] require php >=8.2 -> your php version (8.1.13) does not satisfy that requirement. - drupal/core-dev[11.1.0-beta1, ..., 11.1.x-dev] require symfony/var-dumper ^7.2 -> satisfiable by symfony/var-dumper[v7.2.0-BETA1, ..., 7.4.x-dev]. - Root composer.json requires drupal/core-dev 11.1.* -> satisfiable by drupal/core-dev[11.1.0-beta1, ..., 11.1.x-dev]. Potential causes: - A typo in the package name - The package is not available in a stable-enough version according to your minimum-stability setting see <https://getcomposer.org/doc/04-schema.md#minimum-stability> for more details. - It's a private package and you forgot to add a custom repository to find it Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.