我在玩 Lumen，我通过 Lumen 安装程序安装了它。完成后composer install，我尝试使用，artisan但会引发以下错误：
ReflectionException: Class redis does not exist in Container.php on line 752
我的作曲家.json：
"require": {
"php": ">=7",
"ext-pdo_pgsql": "*",
"ext-soap": "*",
"guzzlehttp/guzzle": "^6.3",
"laravel/lumen-framework": "5.5.*",
"laravel/tinker": "^1.0",
"vlucas/phpdotenv": "~2.2"
},
"require-dev": {
"barryvdh/laravel-ide-helper": "^2.4",
"doctrine/dbal": "^2.5"
},
提前致谢。