You want to add pod 'TwitterKit', '~> 3.4' similar to the following to your Podfile: target 'MyApp' do pod 'TwitterKit', '~> 3.4' endThen run a pod install inside your terminal, or from CocoaPods.app. Alternatively to give it a test run, run the command: pod try TwitterKit Twitter Kit is the easiest way to bring real-time conversational content to your apps. Growing an app’s user base and retainin