Your requirements could not be resolved to an installable set of packages. Problem 1 - acquia/blt[dev-main, 13.x-dev] require acquia/drupal-recommended-settings dev-develop -> found acquia/drupal-recommended-settings[dev-develop] but it conflicts with your root composer.json require (1.0.0-beta1). - acquia/blt 13.x-dev is an alias of acquia/blt dev-main and thus requires it to be installed too. - Root composer.json requires acquia/blt * -> satisfiable by acquia/blt[dev-main, 13.x-dev (alias of dev-main)].

Process completed with exit code 1.