Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/installer 5.1.x-dev -> satisfiable by silverstripe/installer[5.1.x-dev]. - silverstripe/installer 5.1.x-dev requires silverstripe/recipe-plugin 2.0.x-dev -> found silverstripe/recipe-plugin[2.0.x-dev] but it does not match your minimum-stability.

Your requirements could not be resolved to an installable set of packages. Problem 1 - Root composer.json requires silverstripe/installer 5.0.x-dev -> satisfiable by silverstripe/installer[5.0.x-dev]. - silverstripe/installer 5.0.x-dev requires silverstripe/recipe-cms 5.0.x-dev -> found silverstripe/recipe-cms[5.0.x-dev] but it does not match your minimum-stability.