Take me a while to realise cocoapod plugins are installed via gem
$ pod install
[!] Your Podfile requires that the plugin `cocoapods-keys` be installed. Please install it and try installation again.
$ sudo gem install cocoapods-keys
Take me a while to realise cocoapod plugins are installed via gem
$ pod install
[!] Your Podfile requires that the plugin `cocoapods-keys` be installed. Please install it and try installation again.
$ sudo gem install cocoapods-keys