我正在尝试使用一些Ruby文件和RSpec测试在小型Rub​​y中创建一个Guardfile。这不是Rails项目。当我运行geminstallguard时，我得到以下信息:$geminstallguardFetching:listen-1.3.1.gem(100%)Successfullyinstalledlisten-1.3.1Fetching:lumberjack-1.0.4.gem(100%)Successfullyinstalledlumberjack-1.0.4Fetching:guard-1.8.3.gem(100%)Successfullyinstalledguard-