Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires yireo/magento2-googletagmanager2-loki-checkout @dev -> satisfiable by yireo/magento2-googletagmanager2-loki-checkout[2.0.2]. - yireo/magento2-googletagmanager2-loki-checkout 2.0.2 requires loki-checkout/magento2-core ^2.1 -> could not be found in any version, there may be a typo in the package name. 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.