таким образом через консоль
E:\serv\OpenServer\domains\c > composer create-project require "rmrevin/yii2-comments:1.4.получаю такой ответ
Warning: This development build of composer is over 60 days old. It is recommended to update it by running "e:\serv\openserver\modules\php\PHP-5.6\composer.phar self-update" to get the latest version. [UnexpectedValueException] Could not parse version constraint rmrevin/yii2-comments:1.4.*: Invalid version string "rmrevin/yii2-comments:1.4.*" create-project [-s|--stability="..."] [--prefer-source] [--prefer-dist] [--repository-url="..."] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--keep-vcs] [--no-install] [--ignore-platform-reqs] [package] [directory] [version]composer обновил в папке есть все composer.json и composer.lock