Some packages require executing compilation tasks, such as converting SCSS to CSS. The options are: - Yes: Run tasks from these packages (this time) - Always: Run tasks from these packages (now and in the future) - No: Do not run these new tasks - List: Display full list of tasks To avoid asking this question in the future, you may set a preference via environment variable or composer configuration, e.g. - export COMPOSER_COMPILE=all - export COMPOSER_COMPILE=none - composer config extra.compile-mode all - composer config extra.compile-mode none