Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/framework ^6 -> satisfiable by silverstripe/framework[6.x-dev]. - silverstripe/framework 6.x-dev requires silverstripe/config ^3 -> found silverstripe/config[dev-pulls/1/sapphire-test-nine, 1.0.0-alpha5, ..., 1.x-dev, 2.0.0-alpha1, ..., 2.x-dev] but it does not match the constraint. Problem 2 - Root composer.json requires silverstripe/reports ^6 -> satisfiable by silverstripe/reports[6.x-dev]. - silverstripe/reports 6.x-dev requires silverstripe/config ^3 -> found silverstripe/config[dev-pulls/1/sapphire-test-nine, 1.0.0-alpha5, ..., 1.x-dev, 2.0.0-alpha1, ..., 2.x-dev] but it does not match the constraint. Problem 3 - Root composer.json requires silverstripe/subsites ^4 -> satisfiable by silverstripe/subsites[4.x-dev]. - silverstripe/subsites 4.x-dev requires silverstripe/framework ^5 -> found silverstripe/framework[5.0.0-alpha1, ..., 5.x-dev] but it conflicts with your root composer.json require (^6). Problem 4 - silverstripe/framework 6.x-dev requires silverstripe/config ^3 -> found silverstripe/config[dev-pulls/1/sapphire-test-nine, 1.0.0-alpha5, ..., 1.x-dev, 2.0.0-alpha1, ..., 2.x-dev] but it does not match the constraint. - silverstripe/cms 6.x-dev requires silverstripe/framework ^6 -> satisfiable by silverstripe/framework[6.x-dev]. - Root composer.json requires silverstripe/cms ^6 -> satisfiable by silverstripe/cms[6.x-dev].

Process completed with exit code 2.