Make sure you have the latest version of the Xcode command line tools installed:

xcode-select --install 

Install fastlane using

[sudo] gem install fastlane -NV 

or alternatively using brew cask install fastlane

fastlane update_strings 

fastlane alpha 

fastlane external 

fastlane internal 

This README.md is auto-generated and will be re-generated every time fastlane is run. More information about fastlane can be found on fastlane.tools. The documentation of fastlane can be found on docs.fastlane.tools.