Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/assets ^2.3 -> satisfiable by silverstripe/assets[2.x-dev]. - silverstripe/assets 2.x-dev requires silverstripe/framework ^5.1 -> satisfiable by silverstripe/framework[5.1.0-beta1, ..., 5.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/framework is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. Problem 2 - silverstripe-themes/simple 3.3.x-dev requires silverstripe/framework >=3.5 -> satisfiable by silverstripe/framework[3.5.0-rc1, ..., 3.x-dev, 4.0.0-alpha1, ..., 4.x-dev, 5.0.0-alpha1, ..., 5.x-dev, 6.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/framework is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - silverstripe/installer 5.2.x-dev requires silverstripe-themes/simple 3.3.x-dev -> satisfiable by silverstripe-themes/simple[3.3.x-dev]. - Root composer.json requires silverstripe/installer 5.2.x-dev -> satisfiable by silverstripe/installer[5.2.x-dev].

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/assets ^2.3 -> satisfiable by silverstripe/assets[2.x-dev]. - silverstripe/assets 2.x-dev requires silverstripe/framework ^5.1 -> satisfiable by silverstripe/framework[5.1.0-beta1, ..., 5.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/framework is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. Problem 2 - silverstripe-themes/simple 3.3.x-dev requires silverstripe/framework >=3.5 -> satisfiable by silverstripe/framework[3.5.0-rc1, ..., 3.x-dev, 4.0.0-alpha1, ..., 4.x-dev, 5.0.0-alpha1, ..., 5.x-dev, 6.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/framework is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - silverstripe/installer 5.1.x-dev requires silverstripe-themes/simple 3.3.x-dev -> satisfiable by silverstripe-themes/simple[3.3.x-dev]. - Root composer.json requires silverstripe/installer 5.1.x-dev -> satisfiable by silverstripe/installer[5.1.x-dev].

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/assets ^2.3 -> satisfiable by silverstripe/assets[2.x-dev]. - silverstripe/assets 2.x-dev requires silverstripe/framework ^5.1 -> satisfiable by silverstripe/framework[5.1.0-beta1, ..., 5.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/framework is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. Problem 2 - silverstripe-themes/simple[3.2.0, ..., 3.2.x-dev] require silverstripe/framework >=3.5 -> satisfiable by silverstripe/framework[3.5.0-rc1, ..., 3.x-dev, 4.0.0-alpha1, ..., 4.x-dev, 5.0.0-alpha1, ..., 5.x-dev, 6.x-dev] from composer repo (https://repo.packagist.org) but silverstripe/framework is the root package and cannot be modified. See https://getcomposer.org/dep-on-root for details and assistance. - silverstripe/installer 5.0.x-dev requires silverstripe-themes/simple ~3.2.0 -> satisfiable by silverstripe-themes/simple[3.2.0, 3.2.1, 3.2.x-dev]. - Root composer.json requires silverstripe/installer 5.0.x-dev -> satisfiable by silverstripe/installer[5.0.x-dev].

Process completed with exit code 2.

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab, shivammathur/setup-php@1a18b2267f80291a81ca1d33e7c851fe09e7dfc4, actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8, actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.