Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires shopware/core ^6.6, found shopware/core[dev-trunk, 6.6.x-dev (alias of dev-trunk)] but it does not match your minimum-stability. Problem 2 - shopware/administration 6.5.0.0 requires shopware/core v6.5.0.0 -> found shopware/core[6.5.0.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.1.0 requires shopware/core v6.5.1.0 -> found shopware/core[v6.5.1.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.1.1 requires shopware/core v6.5.1.1 -> found shopware/core[v6.5.1.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.2.0 requires shopware/core v6.5.2.0 -> found shopware/core[v6.5.2.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.2.1 requires shopware/core v6.5.2.1 -> found shopware/core[v6.5.2.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.3.0 requires shopware/core v6.5.3.0 -> found shopware/core[v6.5.3.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.3.1 requires shopware/core v6.5.3.1 -> found shopware/core[v6.5.3.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.3.2 requires shopware/core v6.5.3.2 -> found shopware/core[v6.5.3.2] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.3.3 requires shopware/core v6.5.3.3 -> found shopware/core[v6.5.3.3] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.4.0 requires shopware/core v6.5.4.0 -> found shopware/core[v6.5.4.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.4.1 requires shopware/core v6.5.4.1 -> found shopware/core[v6.5.4.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.5.0 requires shopware/core v6.5.5.0 -> found shopware/core[v6.5.5.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.5.1 requires shopware/core v6.5.5.1 -> found shopware/core[v6.5.5.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.5.2 requires shopware/core v6.5.5.2 -> found shopware/core[v6.5.5.2] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.6.0 requires shopware/core v6.5.6.0 -> found shopware/core[v6.5.6.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.6.1 requires shopware/core v6.5.6.1 -> found shopware/core[v6.5.6.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.7.0 requires shopware/core v6.5.7.0 -> found shopware/core[v6.5.7.0] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.7.1 requires shopware/core v6.5.7.1 -> found shopware/core[v6.5.7.1] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.7.2 requires shopware/core v6.5.7.2 -> found shopware/core[v6.5.7.2] but it conflicts with your root composer.json require (^6.6). - shopware/administration v6.5.7.3 requires shopware/core v6.5.7.3 -> found shopware/core[v6.5.7.3] but it conflicts with your root composer.json require (^6.6). - Root composer.json requires shopware/administration ~v6.5.0 -> satisfiable by shopware/administration[6.5.0.0, ..., v6.5.7.3].