brew: 没有名为 ctls 的公式

brew: no formula called ctls

我在尝试安装 Vapor 的 CTLS 包时遇到以下错误。 

Gertrude:ctls tanner$ brew install ctls
Error: No available formula with the name "ctls" 
==> Searching for similarly named formulae...
Error: No similarly named formulae found.
==> Searching taps...
Error: No formulae found in taps.

您需要先添加 Vapor 的水龙头。

brew tap vapor/homebrew-tap

然后运行再

brew install ctls