Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires az-digital/az-quickstart-dev dev-dependabot/composer/main/liuggio/fastest-1.13.1 -> satisfiable by az-digital/az-quickstart-dev[dev-dependabot/composer/main/liuggio/fastest-1.13.1]. - Root composer.json requires az-digital/az_quickstart dev-main -> satisfiable by az-digital/az_quickstart[dev-main]. - az-digital/az-quickstart-dev dev-dependabot/composer/main/liuggio/fastest-1.13.1 requires liuggio/fastest 1.13.1 -> satisfiable by liuggio/fastest[v1.13.1]. - az-digital/az_quickstart dev-main requires drupal/core-recommended 11.2.10 -> satisfiable by drupal/core-recommended[11.2.10]. - drupal/core-recommended 11.2.10 requires psr/container ~2.0.2 -> satisfiable by psr/container[2.0.2, 2.0.x-dev]. - drupal/core-recommended 11.2.10 requires symfony/console ~v7.3.8 -> satisfiable by symfony/console[v7.3.8, v7.3.9, 7.3.x-dev], symfony/serializer[v7.3.8, 7.3.x-dev]. - liuggio/fastest v1.13.1 requires symfony/stopwatch ^5.4|^6.4|^7.4|^8.0 -> satisfiable by symfony/stopwatch[v5.4.0-BETA1, ..., 5.4.x-dev, v6.4.0-BETA1, ..., 6.4.x-dev, v7.4.0-BETA1, v7.4.0-RC1, v7.4.0, 7.4.x-dev, v8.0.0-BETA1, ..., 8.1.x-dev], symfony/serializer[v5.4.0-RC1, ..., 5.4.x-dev, v6.4.0-BETA1, ..., 6.4.x-dev, v7.4.0-BETA1, ..., 7.4.x-dev]. - symfony/contracts[v1.1.1, ..., v1.1.8] require php ^7.1.3 -> your php version (8.3.29) does not satisfy that requirement. - symfony/service-contracts[v1.1.1, ..., v1.1.8] require php ^7.1.3 -> your php version (8.3.29) does not satisfy that requirement. - symfony/contracts[v1.1.9, ..., v1.10.0] require psr/container ^1.0 -> satisfiable by psr/container[1.0.0, ..., 1.x-dev]. - symfony/service-contracts[v1.1.9, ..., v1.10.0, v2.1.2, ..., 2.3.x-dev] require psr/container ^1.0 -> satisfiable by psr/container[1.0.0, ..., 1.x-dev]. - symfony/service-contracts v2.0.0 requires php ^7.2.9 -> your php version (8.3.29) does not satisfy that requirement. - symfony/service-contracts[v2.0.1, ..., v2.1.1] require php ^7.2.5 -> your php version (8.3.29) does not satisfy that requirement. - symfony/service-contracts[v2.4.0, ..., 2.5.x-dev] require psr/container ^1.1 -> satisfiable by psr/container[1.1.0, ..., 1.x-dev]. - symfony/stopwatch v5.4.0-BETA1 requires symfony/service-contracts ^1.0|^2 -> satisfiable by symfony/service-contracts[v1.1.1, ..., v1.10.0, v2.0.0, ..., 2.5.x-dev], symfony/contracts[v1.0.0-BETA1, ..., v1.10.0]. - symfony/stopwatch[v8.0.0-BETA1, ..., 8.1.x-dev] require php >=8.4 -> your php version (8.3.29) does not satisfy that requirement. - Conclusion: don't install symfony/console v7.3.9 (conflict analysis result) - You can only install one version of a package, so only one of these can be installed: psr/container[1.0.0, ..., 1.x-dev, 2.0.0, 2.0.1, 2.0.2, 2.0.x-dev]. - Only one of these can be installed: symfony/serializer[7.3.x-dev, 7.4.x-dev], symfony/stopwatch[v5.4.0-BETA1, ..., 5.4.x-dev, v6.4.0-BETA1, ..., 6.4.x-dev, v7.4.0-BETA1, v7.4.0-RC1, v7.4.0, 7.4.x-dev, v8.0.0-BETA1, ..., 8.1.x-dev]. symfony/serializer replaces symfony/stopwatch and thus cannot coexist with it. - Only one of these can be installed: symfony/serializer[7.3.x-dev, 7.4.x-dev], symfony/yaml[v2.0.22, ..., 2.8.x-dev, v3.0.0-BETA1, ..., 3.4.x-dev, v4.0.0-BETA1, ..., 4.4.x-dev, v5.0.0-BETA1, ..., 5.4.x-dev, v6.0.0-BETA1, ..., 6.4.x-dev, v7.1.0-BETA1, ..., 7.4.x-dev, v8.0.0-BETA1, ..., 8.1.x-dev]. symfony/serializer replaces symfony/yaml and thus cannot coexist with it.